WO1997012312A1 - Dispositif entree/sortie pour la connexion et la deconnexion de lignes actives - Google Patents
Dispositif entree/sortie pour la connexion et la deconnexion de lignes actives Download PDFInfo
- Publication number
- WO1997012312A1 WO1997012312A1 PCT/JP1995/001955 JP9501955W WO9712312A1 WO 1997012312 A1 WO1997012312 A1 WO 1997012312A1 JP 9501955 W JP9501955 W JP 9501955W WO 9712312 A1 WO9712312 A1 WO 9712312A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- input
- output device
- output
- signal
- Prior art date
Links
- 238000012546 transfer Methods 0.000 claims description 26
- 238000003780 insertion Methods 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 23
- 239000003990 capacitor Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 4
- 241000255925 Diptera Species 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 101000966403 Homo sapiens Dynein light chain 1, cytoplasmic Proteins 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 102000047519 human DYNLL1 Human genes 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000001890 transfection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/189—Power distribution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Definitions
- the present invention relates to an input / output device for realizing hot-swapping, and more particularly, to an input / output device, such as an operating system bus, in which an operation is independently performed without stopping operation.
- the present invention relates to a device for inserting and removing an electronic circuit device.
- a power supply is previously supplied by a code or the like, and a bus driver disable control (open control) is performed.
- a bus driver disable control open control
- the power supply and driver open / close control lines are connected to the bus circuit by long pins, and the other bus signal lines are connected to the bus circuit by short pins. Disturbing the signal on the bus due to insertion by disabling the switching control line of the driver in advance. There is something to prevent.
- An object of the present invention is to select an input / output device that can be hot-swappable, and to use a transistor with a small signal delay as the input / output device to ensure disabling during insertion / removal, thereby achieving high-speed operation.
- An object of the present invention is to provide an input / output device which does not hinder the transmission of bus signals of other electronic circuit devices by inserting / removing an expansion device with a possible bus.
- Another object of the present invention relates to an input / output device capable of hot-swapping, in which the power supply system inside the expansion device is multiplexed, and the high-impedance (high insulation) of the input / output device inside the expansion device is not maintained.
- An object of the present invention is to provide an input / output device that prevents the operation of an electronic circuit device that is not involved in insertion / removal while reducing the influence on a power supply when the extension device is inserted / removed while preventing the device from becoming stable.
- Another object of the present invention relates to an input / output device, and a bus operation waveform is quickly inserted and arranged in an input / output unit of an electronic circuit device at a position that is a fixed short distance from a ribus.
- the aim is to provide a system that can be settled and suitable for express buses.
- the input / output device of the present invention is an input / output device for connecting a signal network having a plurality of signal branch wirings and a plurality of electronic circuit devices, wherein the electronic circuit device is a printed circuit board on which the signal network is wired.
- a long pin that is placed on a separate extension device, separate from the extension device at the time of insertion and last isolation at the time of removal Supplying power to the input / output device by connecting to the signal network via a connector including a pair and a pair of short pins that contact after the long pin when inserted and separate before the long pin when removed.
- An input / output device power supply unit wherein the input / output device power supply unit is connected to a main power supply via the long pin pair, the input / output device includes a plurality of transfer gates, The gate has two input / output terminals and an opening / closing control terminal, and one input / output terminal of the plurality of transistors is connected to the plurality of signal branch wirings via the short pin pairs.
- the other input / output terminals of the plurality of transistors are connected to the electronic circuit device, and the open / close control terminals of the plurality of transistors are connected to the input / output device in the expansion device.
- Power supply either positive or negative Through the resistor, characterized in that connection.
- the input / output device of the present invention is characterized in that the opening / closing control terminals of the plurality of transfer gates are connected to a control device that controls the opening / closing of the transfer gate via the short pin pairs.
- control device of the present invention is characterized in that the opening and closing control terminal is driven in synchronization with a reference signal used by the electronic circuit device to capture a signal of the signal network.
- control device of the present invention has connection recognition means for recognizing whether or not the plurality of extension devices are connected to the signal network, and connects the plurality of extension devices determined by the connection recognition means. It has one or more connection state registers for setting states.
- control device of the present invention has an opening / closing control register, and controls opening / closing of each input / output device by writing open / close information in an area of the opening / closing control register corresponding to each input / output device.
- the expansion device includes an input device for supplying power only to the input / output device.
- the input / output device power supply unit is connected to a main power supply via a first long pin pair.
- the circuit power supply unit is connected to a precharge power supply different from the main power supply via a second long pin pair.
- the expansion device of the present invention has an input / output device power supply unit that supplies power only to the input / output device, and a circuit power supply unit that supplies power to devices other than the input / output device.
- the power supply for the output device is connected to the main power supply through a first long pin pair, and the power supply for the circuit is connected to the main power supply through a second long pin pair. I do.
- the expansion device of the present invention further includes an input / output device power supply unit that supplies power only to the input / output device, and a circuit power supply unit that supplies power to devices other than the input / output device.
- the device power supply unit is connected to the main power supply via a first long pin pair
- the circuit power supply unit is connected to a capacitor via a second long pin pair
- the capacitor is connected from the main power supply. It is characterized by being charged.
- the input / output device is characterized in that the capacitor is charged from the capacitor ′, the main power supply via a resistor or a resistor and a diode.
- the circuit power supply unit is connected to the main power supply via a short pin pair.
- the input device power supply unit and the circuit power supply unit are wired on a printed circuit board on which the electronic circuit device is wired, via a space where no wiring material is present. It is characterized by the following.
- the expansion device of the present invention is characterized in that pins on a connector for supplying power to the power supply unit for the input device and the power supply unit for the circuit are arranged as far apart as possible on the connector.
- the input / output device of the present invention is an input / output device for connecting a signal network having a plurality of signal branch wirings and a plurality of electronic circuit devices, wherein the input / output device includes a plurality of transfer gates, The transfer gate has two human output terminals and an opening / closing control terminal, and a first signal branch wiring connects one input / output terminal of the transfer gate to the signal network, The second signal branching line connects the other input / output terminal of the plurality of transfer gates to the electronic circuit device, and the open / close control terminal of the transfer gate is connected to the second input / output terminal of the transfer gate.
- the first input / output terminal is maintained at a potential that is always in a conductive state, and the length of the first signal branch wiring is set to 1.5 inches or less, thereby reducing the reflected wave of the signal circuit network.
- Signal branch Characterized by light flashing arrangement limits the line length 1.
- the electronic circuit device by a 5 Inchi more.
- the present invention has the above configuration, even when the extension device is inserted or removed, a stable power is supplied to the transistor and a disable signal is supplied to the open / close control terminal of the transistor.
- the input / output terminals of the transfer gate are guaranteed to have high impedance, and it is possible to minimize the influence on the system bus during insertion / removal.
- the present invention provides a pre-charging power supply in addition to a main power supply for supplying power to a plurality of expansion devices, and further connects a power supply system in the expansion device to a stable main power supply from the beginning of the expansion device insertion. It is necessary to prepare a power supply system and an unstable power supply system to be connected to the pre-charging power supply when the extension device is inserted, and to set the input / output terminals to high impedance from the beginning of the extension device insertion. Power from the stable power supply system, and power from the unstable power supply system to charge the capacitive load existing in the expansion unit. System The other expansion devices that are operating on the server can continue to operate stably.
- the pre-charging power source may be used as the main power source as long as the main power source can supply power stably.
- the present invention provides an input / output unit of an electronic circuit device and inserts and arranges a transfer gate at a position that is a certain short distance from a bus, so that the reflection of the transfagator on the electronic circuit device side can be reduced. The effect is blocked by transfer, and the multiple reflections of the bus signal are attenuated in a short time, and the bus signal waveform can be settled quickly.
- FIG. 1 shows an embodiment of the present invention, and is an overall view showing a connection between a system bus and an expansion device.
- FIG. 2 shows an embodiment of an input / output device for supplying power to the expansion device.
- FIG. 3 is an embodiment of a plurality of power supplies for supplying power to the expansion device,
- FIG. 4 is another embodiment of an input / output device for supplying power to the expansion device, and
- FIG. 6 is an embodiment of a control device connected to a plurality of expansion devices, and
- FIG. 7 is a diagram showing an example of logically connecting the expansion devices to a system bus.
- FIG. 8 is an example of a device for notifying that an expansion device has been inserted into the system bus, and
- FIG. 9 is an example of an input / output device using a transfagator. This is one embodiment.
- Fig. 1 (a) shows a functional block diagram of the I / O device that realizes hot-line insertion and removal in the embodiment of the present invention.
- FIG. 1 (a) shows an expansion device 800 connected to a path (BUS) and a power supply (POWER).
- the expansion device 800 has a MOS switch including a plurality of trampagets. 300, a high-impedance holding circuit 350 that controls the MOS switch 300 to high impedance when the expansion device 800 is inserted and removed, and an electronic device that operates by connecting to the bus.
- it is indicated by long and short pin connectors.
- the transistor is a type of MOS element.
- the gate terminal of the M ⁇ S transistor When the gate terminal of the M ⁇ S transistor is enabled (closed control), conduction is established between the drain and source terminals. This is to put a high impedance state between the input terminal and the source terminal.
- the translator can be on a crossbar switch to switch communication lines.
- the power supply it is common that all the electronic circuit devices used on the bus circuit share the power supply.
- fluctuations in the power supply load when the expansion device is inserted or removed may make the operation of other electronic circuit devices unstable.
- the expansion device 800 when the expansion device 800 is It is possible to reduce the influence. That is, when the expansion device 800 is inserted, power is first supplied to the expansion device 800, and the high-impedance holding device 350 sets the MOS switch 300 to a high-impedance state. Drive signal lines. Thereafter, the MOS switch 300 which has become a high impedance is connected to the bus, the MOS switch 300 is externally enabled, the electronic circuit device is connected to the bus, and the insertion operation is completed. When the insertion switch is connected to the MOS switch 300, the MOS switch 300 can guarantee a high impedance and reduce the capacity load. Zero suppression is possible. FIG.
- FIG. 1 (b) shows an example of power supply wiring in the case where the embodiment of the present invention is properly applied in order to ensure that the embodiment of the present invention functions. That is, when a power supply is first connected to an electronic circuit device 400 having a large capacity fi load for the first time, the power supply fluctuates due to a surge current for charging the capacitive load, and the operation of the MOS switch 300 is stopped. If power cannot be guaranteed and the power is shared with other expansion units, it may affect even the bus in operation. Therefore, at least during connection operation, power is supplied from the stable power supply POWER-1 to the MOS switch 300 and the high impedance holding circuit 350, and the electronic circuit device 400 Is supplied with power from POWER-1 which is different from POWER-1.
- FIG. 1 (c) shows a system bus 100 having a plurality of signal lines, a tap bundle 200 which is a branch of the system bus 100, and a MOS switch 300 (M0S-SW).
- M0S-SW MOS switch 300
- an electronic circuit device 400 connected to and operating on the bus, a control device 500 (CN-cho) for controlling the opening and closing of the MOS switch 300, and a control for controlling the opening and closing of the MOS switch 300
- BUSL0AD electronic circuit device 400
- CN-cho control device 500
- CN-cho control for controlling the opening and closing of the MOS switch 300
- Connect the line 600 and the extension device 800 separate from the printed circuit board to which the system bus 100 is wired, and connect the open / close control terminal 242 of the MOS switch 300 on the extension device 800 1 illustrates a resistor 810, connectors 700a and 700b that connect the system bus 100 and the expansion device 800, and a main power supply 110 that supplies power to the expansion device 800.
- a plurality of expansion devices may be connected to the system bus # 00. In the tree embodiment, the plurality of expansion devices are hereinafter referred to as expansion devices 800.
- the connectors 700a and 700b are long pin pairs that contact first when inserting the expansion device 800 and isolate last when removing the extension device, and contact after the insertion long pin and before the removal long pin. It has a pair of short pins for isolation.
- the MOS switch 300 includes a plurality of transistors 310 and a driver 320 for driving the gates of the transistors 310, and the transistor 310 includes: Electronic circuit device 400 and taps 210 through 21n via short pin pairs (710 a through 71 na, 71 b through 71 ⁇ b), respectively Connected.
- the driver 320 is supplied with electric power from the positive power supply unit 240 for the human output device and the negative power supply unit 241.
- the positive power supply section 240 and the negative power supply section 240 for the input / output device are connected to a stable main power supply 110 via long pin pairs (720a to 721a, 720b to 721b). .
- One of the resistors 8 10 is connected to the open / close control terminal 2 42, and the other is the main power supply.
- control device 500 It is also connected to the control device 500 via the 10-pair (730a, 7300b) and the control line 600.
- the 10-pair (730a, 7300b) it is desirable to increase the resistance value of the resistor 8100 so that the control device 500 can drive the control line 600 within a time sufficiently shorter than the operation cycle of the system bus.
- the controller 500 sets the control line 600 to a “logic negative potential” (hereinafter simply referred to as LOW). Similarly, it is necessary to enable each transfer gate 3 ⁇ 0 in the MOS switch 300 by setting the “logical positive potential” to simply “HIGH” hereinafter. As a result, the electronic circuit device 400 is connected to the system bus 100 and transmission of signals with other electronic circuit devices connected to the system bus 100 becomes possible.
- LOW logic negative potential
- the technical idea of the present invention is to secure the potential of the power supply of the MOS switch 300 and the potential of the switching control terminal 242 before the human output lines 220 to 22n are connected.
- the purpose is to guarantee high impedance of the input / output lines 220 to 22n when the expansion device 800 is inserted without the intervention of 500.
- the connection order of the power supply and the signal line is secured by connecting a connector having long and short pins, and the MOS switch 300 is stably operated.
- the stable positive voltage of the main power supply 110 is first supplied to the input / output device positive power supply section 240 by the long pin pair (720a, 720b).
- the stable negative voltage of the main power supply 110 is supplied to the negative power supply section 241 by the long pin pair (721 a, 721 b).
- the resistance HIG ⁇ is added to the open / close control terminal 2 4 2 of the MOS switch 3 ⁇ 0 via 8 10, so that the power supply of the MOS switch 3 ⁇ 0 is secured and disabled, and the I / O line 2 2 0 to 22 ⁇ guarantees high impedance.
- the human output line 220-222 ⁇ and the tap 210-221 ⁇ force in the high impedance state and the short pin pair
- the control device 500 drives the open / close control terminal 2442 via the control line 600 to drive to ⁇ W, 3 ⁇ 4Connect the circuit device 400 to the system bus 100.
- the input / output lines 222 to 22n of the mos switch 300 when the expansion device 800 is inserted are guaranteed high impedance, so that a load applied to the system bus 100 is guaranteed. The effects of fluctuations are minor.
- the operator first gives an instruction to the control device 500 before removing, and drives the open / close control terminal 242 to high via the control line 600.
- the electronic circuit device 400 and the system bus 100 are disconnected.
- the extension device 800 is pulled out while the Moss switch 300 is secured with the disable, and the short pin pair (710 a to 7) connected to the taps 210 to 21n first lna, 710b to 711nb) and the short pin pair (730a, 730b) connected to the control line 600 are disconnected.
- the power supplied from the long pin pairs (720 a to 72 1 a 72 0 b to 72 1 b) and the resistor 810 connected to the power supply thus, the high impedance of the input / output lines 220 to 22n of the MOS switch 300 is guaranteed.
- the long pin pairs (720 a to 72 a, 720 b to 71 b) are isolated and the removal is completed.
- the input / output lines 220--22 ⁇ of the MOS switch 30 CT / JS 1 55
- FIG. 2 shows an embodiment of an input / output device for supplying power to an extension device, particularly for a human output device for realizing live insertion / removal of a tree li) J.
- FIG. 2 is a circuit schematically showing a load in an expansion device 800 including a precharge power source 120 and an electronic circuit device 400 in addition to the components shown in FIG.
- a circuit power supply that directly supplies power only to the circuit load 82 0 to 82 m from the load 82 0 to 82 m and the pre-charging power supply 120 through the pair of gorge pins (722a, 72 2 b) Part 2 43 is shown.
- the technical philosophy of the present lilj is that when the expansion unit 800 is inserted / removed, the main power supply 110, which is also receiving power from other expansion units in operation, minimizes the effects of load fluctuations. Without providing it, it is necessary to secure a power supply for the J1 MOS switch 300 so that the input / output lines have a high impedance. Therefore, in this embodiment, the positive power supply section 240 of the input / output device (here, the MOS switch 300) and the positive power supply section other than the input / output device (here, the circuit power supply section 243) are extended. Separated in the device 800, the human output device Kawamasa 12 power source 240 was supplied with power from the main power source 110, and the circuit power source portion 24 43 was precharged from the 3 ⁇ 4
- Pre-charging power supply ⁇ Connect to the circuit power supply section 243 via the long pin pair (722 a, 722 b) and the diode 830 from the precharge power supply ⁇ 20.
- the main power supply 110 bypasses the diode 830 via the short pin pairs (723 a, 723 b) and connects to the circuit power supply section 243.
- the long pin pair (7200a ⁇ Power is supplied from the stable main power supply 110 to the MOS switch 300 through the terminals 7 21 a and 7 210 b to 7 21 b).
- the input / output lines of the MOS switch 300 are disabled by the stable main power supply 110.
- the precharging power supply 120 performs precharging on the road 0, load 820 to 82 m.
- the short pin pair When the expansion device E800 is further inserted, the short pin pair
- Power is supplied from the main power supply 110 to the circuit power supply unit 243 by (723a, 723b), and the deterrent of the expansion device 800 is completed.
- the short pin pair (723a, 723b) is isolated, and the main power supply 110 is connected to the circuit. The supply of power to is stopped. At this time, the back electromotive force due to the effect of being disconnected from the power supply is cut off by the diode 830. Further, a plurality of long pin pairs (720 a to 72 a, 720 b to 72 b) are isolated, and the removal of the extension device 800 is completed.
- the purpose of the embodiment of the present invention with respect to the pre-charging power supply 120 is that the power supply capacity may be smaller than that of the main power supply 110.
- the main power supply 110 since the main power supply 110 is shared by a plurality of expansion units connected to the system bus 100, considering the influence on the plurality of expansion units, it is extremely difficult for the main power supply 110 to fluctuate due to load fluctuation. You have to avoid it. Therefore, the stable main power supply 110 should supply power to the minimum necessary circuits, and supply power only to the MOS switch 300, which requires reliable operation, during insertion and removal.
- the expansion device includes many frosted circuit devices, and the initial charging charge immediately before the insertion of the expansion device can be said to be generally zero.
- the main power supply 110 Connected, an inrush current that initially fills the electronic circuit device flows, and
- the fluctuation of 110 may occur.
- the pre-charging power supply 120 In order to prevent the above fluctuations, the pre-charging power supply 120 must be supplied by the pre-charging power supply 120, and the main power supply 110 should be connected after the surge current has subsided. Constitute. In the present embodiment, power is supplied from the pre-charging power supply 120 to the long pin and from the main power supply 1 i0 to the short pin. From the above, the designer can design the capacity of the pre-charging power supply 120 so as to have an acceptable fluctuation in the system configuration in consideration of the magnitude of the inrush current of the expansion device 800.
- FIG. 3 shows another embodiment of the input / output device for realizing the hot-swap operation of the I / O device s for realizing the hot-swapping of the tree, and in particular, for supplying the t-force to the expansion device.
- Fig. 3 (a) shows that, compared to the configuration of Fig. ⁇ , the pre-filled defrost pack source 120 has been replaced with a capacitor 120, and the addition of the surgeon flow restriction circuit I ' ⁇ 1 has been added. Is different.
- Fig. 3 (b) shows an example of the configuration of the inrush current limiting circuit 121, with the main power supply line 230 connected to the main power supply 110 and the spare charging power supply line connected to the capacitor 120 '. It shows that the connection with 2 3 2 is made by a diode 1 2 2 and a resistor 1 13.
- the feature of the present embodiment is that the pre-charge 1M 120 is replaced with a capacitor 120 ′ which is charged from the main power supply 110.
- the capacitor 120 ' is charged from the main power supply 110 and has almost the same potential as the main power supply 110.
- the initial charging current for the circuit loads 820 to 82 m in the expansion device 800 is supplied from the capacitor 120 '.
- the long pin pair (72 2a, 72 2b) is connected.
- the transfer of electric charge occurs between the capacitor 120 'and the zero load 82 0-82 m.
- the short pin pair (732a, 723b) is connected, the time constant of the resistor 123, the capacitor 120 'and the combined capacitance of the circuit load 82-82m is calculated.
- the charging is performed from the main power supply 110. ⁇ , Therefore, the fluctuation of the main power supply ⁇ 10 due to the inrush current can be prevented by sufficiently increasing the value of the capacitor 120 ′ in consideration of the time. .
- FIG. 4 shows another embodiment of the human output device which supplies an input / output device for realizing the insertion / extraction of a wooden line, and particularly supplies power to the extension E, and will be described below.
- FIG. 4 is similar to the components shown in FIG. 2, except that the spare-charging power supply 120 is eliminated, and a resistor 831 is arranged in series with the diode 83 °.
- the raw power supply 110 is directly connected to the long pin pair (722 a, 72 b).
- the feature of this embodiment is that the positive power supply section 240 of the input / output device (here, the MOS switch 300) and the positive power supply section other than the input / output device (here, the power supply section 2443 for the circuit) are provided.
- the main power supply 110 supplies power to the input / output device power supply unit 240 and the circuit power supply unit 243.
- the main power supply 110 From the main power supply 110, it is connected to the circuit power supply section 2443 via the long pin pair (722a, 72b), the diode 83, and the resistor 831, and the short pin pair ( The diode 830 and the resistor 831 are bypassed via 723a and 723b), and are connected to the circuit power supply 2243.
- a stable main power supply 110 through a long pin pair (720-a to 720a, 720b to 721b) Is supplied to the MOS switch 300.
- the input / output lines of the MOS switch 300 are disabled by a stable main power supply.
- power is supplied from the main power supply 110 to the circuit power supply section 243 via the long pin pair (722 a, 722 b), the diode 830 and the resistor 833.
- the main power supply 110 performs pre-charging on the circuit load 82 () to 82 m with the time constant of the resistance 83 I and the combined capacitance of the circuit load 82 to 82 m.
- the power is supplied from the main power supply i 10 to the circuit river power supply section 24 3 according to 7 2 3 b), and the insertion of the expansion device 800 is completed.
- the short pin pair ((723a, 723b)) is isolated first, and the main power supply 110 is connected to a circuit load of 820m to 82m. The supply of force is stopped. At this time, the back electromotive force due to the effect of being disconnected from the power supply is cut off by the diode 830. Furthermore, a plurality of long pin pairs (720-72a, 720-72b) are isolated and expanded.
- the pre-charge IE source 120 is eliminated and a resistor 831 is added as required, as compared with FIG. Therefore, it is desirable to provide a resistor 831 in order to limit the inrush current from the main power supply 110 when the expansion device 800 is inserted, and furthermore, make the resistance value of the resistor 831 sufficiently large. This is desirable.
- the circuit load 82 0 to 82 m must be sufficiently charged, and the upper limit of the inrush current and the time constant Needs to be set in a well-balanced size.
- FIG. 5 shows an implementation example of the input / output device for realizing hot-swap according to the present invention, and in particular, an input / output device for supplying power to the extension device.
- FIG. 5 can be applied to any of the embodiments shown in FIGS. 2 and 4, and this embodiment particularly shows an example of implementation of the embodiment shown in FIG.
- the feature of the present embodiment is that the input / output device (here, the MOS switch 300) has a positive
- the power supply section 240 and the positive power supply section other than the input / output device (here, the circuit power supply section 2 43) are separated from the power supply section within the expansion device, and the positive power supply areas different from each other on the printed circuit board 900. Is provided.
- Fig. 5 shows the connection of the long pin 720b and the short pin 723b to the positive power supply areas (hatched areas) 850 and 851, respectively, on the printed circuit board 900. This indicates that connection is made from b to the positive power supply region 851 via the diode 830 and the resistor 831.
- the area of the positive power supply is the input / output device Kawasaki power supply area 850 and the circuit load i ”it-: A space without either power supply area (slit) is interposed between the power supply area 81 and both.
- each power supply region may be provided on a separate layer instead of on the same plane by using a multilayer printed circuit board.
- the long pin pair (720a, 720b) and the long pin pair (722a, 722b) or the short pin pair (723a, 723b) are In order to avoid interference between the main power supply 110 and the main power supply 110, the connector (700 a, 70 0 0 b) It is desirable to place them as far apart physically as possible.
- a long pin pair (720a, 720b) and a long pin pair (722a, 72b) should be provided at both ends of the connector.
- FIG. 6 shows an embodiment of a control device for controlling the opening / closing of a mosquito switch relating to the input / output device for realizing hot-swap of the present invention.
- FIG. 6 shows a portion related to the opening and closing control in the control device 500 and the expansion device 800.
- the control device 500 (CNT) for controlling the opening and closing of the MOS switch 300, and the operator issues a command.
- the operation of the control unit 500 PCrJP95 / 01955
- Supporting service processor 5 10 SVP
- connection monitoring unit 5 2 0 SLOTACK
- switching unit 5 for opening and closing MOS switch 3 0 5 3 0
- a connection judging section 540 CONDITION
- CONDITION CONDITION
- the reference signal 56 ⁇ and the reference signal source 56 1 (P ⁇ ) the control line 600 for transmitting the closed control
- the slot status line for transmitting the connection status of the expansion unit 800 610 and a slot status output section 840 (SLOTIN) for outputting the connection status of the expansion device 800.
- connection monitor 520 has a connection status register 521.
- the interrogator 530 includes an opening / closing control register 531.
- control device 500 when inserting and removing the extension device 800 will be described below.
- the expansion device 800 When the operator inserts the expansion device 800 into the system bus 100 first, when the operator inserts the expansion device 800, the expansion device is transmitted from the slot status output section 840 through the slot status line 6100. The controller 500 is notified of the insertion.
- the connection monitoring unit 520 sets the state of the expansion device 800 in the connection status register 521, and raises an interrupt to the connection determination unit 540 #.
- the connection determination unit 540 that has received the interrupt issues a connection command to the operation command logic 550 when a predetermined condition is satisfied.
- the predetermined condition includes a command from the service processor 510 or a certain time after the interrupt is raised, a reset processing completion notification from the expansion device 800, and the like.
- the operation command logic 550 is based on the signals of the connection judging unit 540 and the connection monitoring unit 520, and the expansion device inserted into the opening / closing unit 530 In the open / close control register area corresponding to 800, write “close” information for closing the MOS switch 300.
- the open / close unit 530 selects the control line 600 of the extension device 800 corresponding to the written area, and drives the open / close control terminal 242 of the MOS switch 300 to LOW.
- the extended device 800 thus deterred is connected to the system bus # 10.
- the main processing device that manages the system ends the configuration control of the system, sets the internal registers of the expansion device 800, and then shifts to the normal operation.
- connection determination unit 540 When the operator removes the expansion unit 800, the MOS switch 300 of the expansion unit 800 must be disconnected first to minimize the effect of removal on the system bus 110 '. . Therefore, it is necessary for the connection determination unit 540 to know in advance the extension device to be removed. For this purpose, a disconnection request interrupt from the main processing device that manages the system, or the operation of the service processor 5 by the operator. There is a command that is manually input from 10 and an error report interrupt from the expansion device 800. The connection determination unit 540 that has recognized the expansion device to be removed issues a disconnection command to the operation instruction logic 550 to disconnect the expansion device.
- the operation command logic 550 writes the "open" information from the signal from the connection determining section 40 to the area of the ⁇ close control register 531, which corresponds to the expansion device to be removed.
- the switching unit 530 selects the control line 600 of the expansion device 800 corresponding to the written area, and drives the switching control terminal 242 of the MOS switch 300 to HIGH.
- the expansion device 800 inserted as described above is disconnected from the system bus 110. Further, the expansion device 800 that can be removed is physically separated from the system bus by the operator.
- the main processing unit that manages the system finishes the reconfiguration control of the system, and then returns to normal operation.
- the input / output device for realizing the hot-swap of the present invention especially the expansion device
- FIG. 1 One embodiment of the method of connecting to the system bus is shown in FIG.
- the timing for connecting or disconnecting is set so as not to hinder signal transmission during operation on the system bus. This indicates that the waveform disturbance is to be corrected within a period in which there is no effect.
- FIG. 7 shows the timing of connecting the expansion unit 800 to the system bus 100, and shows the operation waveforms of the reference signal 560, the control line 600, and the system bus 100. An example is shown.
- the extension device 800 is inserted will be described below with reference to FIG.
- the signal on the system bus # 00 is determined at the rising edge of the S reference signal 560 and is taken in.
- the period of the reference signal 560 of the system bus 100 is Tc1k1020, and the signal setup time required for the system bus 100 is Tsu1010. It is.
- the open / close section 530 for driving the control line 600 is connected to the reference signal 560.
- the opening / closing unit 530 drives the control line 600 to ⁇ W in order to logically connect the electronic circuit device 400 in the expansion device 800 to the system bus I 00.
- the opening / closing section 530 sets the control signal 600 to OW in synchronization with the rise of the reference signal 560 (1030).
- the MOS switch 300 becomes conductive, and the electronic circuit device 400 is connected to the system bus 100, so that a signal disturbance occurs on the system bus 100 (1004).
- control device 500 connects the expansion device 800 without interrupting signal transmission on the bus. It becomes possible.
- FIG. 8 shows an embodiment of a slot status output unit for notifying that an expansion device has been inserted, particularly to an input / output device for realizing hot-swap of the tree invention, which will be described below.
- FIG. 8 shows an example of the configuration of the slot state output section 8400.
- the slot status output section 840 is provided between the extension device 800 and the control device 500, and the slot status line 610 is a short pin pair (731a, 7311b). ) To the negative power line 2 41 in the expansion unit 800.
- the slot status line 6100 is connected to a positive power supply unit, for example, a main I power supply unit 230 via a resistor 611 outside the expansion device 800.
- the slot status line 610 before the operator inserts the expansion device 800 is pulled up by the resistor 611 connected to the positive power supply and outputs! N GH. From this, the control device 500 recognizes that the expansion device 800 is not connected to the system bus 100.
- the operator inserts the extension device 800 first, a plurality of long pin pairs are connected, and after the power supply potential is determined, the short pin pairs are connected.
- the short pin pair (731a, 731b) is connected, the slot status line 610 is connected to f ⁇ power supply 241, and outputs L0W.
- the control device 500 recognizes that the expansion device 800 has been inserted into the system bus 100.
- the slot status line 610 that output LOW before removal outputs HIGH by being removed, and as a result, The control device 500 recognizes that the extension device 800 has been removed.
- One embodiment for the I / O device of Kimei is shown in FIG. 9 and described below.
- FIG. 9 shows a system bus 100 having a plurality of signal lines, a tap 200 which is a branch of the system bus 100, a MOS switch 300 (M0S-SW), and a direct connection to the bus.
- An electronic circuit device 400 (BUSLOAD) that is connected and operable is shown.
- the technical idea of the present invention is that, for an electronic circuit device conventionally connected directly to a bus, a mosquito switch is inserted between the bus and the electronic circuit device, and the mosquito switch is placed as close to the bus as possible.
- a mosquito switch is inserted between the bus and the electronic circuit device, and the mosquito switch is placed as close to the bus as possible.
- the input of the opening / closing control driver 320 is connected to the negative power supply section 241 via a resistor because the MOS switch 300 is always enabled.
- the signals transmitted on the system bus 100 generally include (1) the pin of the MOS switch 300 on the system bus 100 side, and (2) the MOS switch. And (3) the human output pin of the electronic circuit device 400, which is affected by reflections from three points.
- shortening (1) greatly contributes to bus signal waveform stabilization.
- the upper limits of the lengths LA1 to LAn are determined by considering the operating frequency and reflection of the system bus 100 and the influence of the total extension of the system bus 100, etc. In the transmission It is determined within the range that can be done.
- a 5 V bus system more specifically, a bus propagation time of 11 ns or less, a bus characteristic impedance of 60 to 100 ⁇ , and a human pin capacitance of the electronic circuit device 400 of 1
- the length LA 1 to 8: 1 is set to be 0 to 1.5 inches and less.
- each of the child circuit devices 400 and the system bus 100 are connected so that the HI level and the LOW level of the signal waveform are secured within the bus propagation time.
- a MOS switch 300 is arranged so that the length LA 1 to An is not less than 0 inches and not more than 1.5 inches.
- the electronic circuit device 400 need not be on the same backboard as the system bus 100.
- the electronic circuit device 400 arranges the MOS switch 300 in the vicinity of the system bus 100 and satisfies the bus specifications, so that the fear LB1 to Bn can be 1.5 inches or more, preferably 1 inch or more. Wiring can be performed with less than 0 inch.
- the MOS switch 300 As described above, by disposing the MOS switch 300 between the conventional electronic circuit device 400 and the system bus 100 within a range in which the influence of reflection is considered, the The output signal is output to the system bus 100 through the MOS switch 300 transfer gate 310.
- the signal on system bus 100 is mainly affected by reflections at both ends of system bus 100 and the human-powered end of other MOS switches, and the lengths LA l to LA n should be shortened. As a result, the multiple reflections of the bus signal settle down early, so that the signal waveform of the system bus converges and stabilizes quickly, making it possible to use a suitable high-speed bus.
- this device it is possible to use a hot-pluggable fibre-type input / output device, and to provide a transfuse with a small signal delay to the human output device S to secure disassembling at the time of suppression.
- an operable bus it is possible to realize an input / output device in which insertion / removal of an expansion device does not hinder bus signal transmission of another sub-circuit device.
- an electronic circuit device that reduces the impact on the power supply when plugging / unplugging the expansion device by adding a redundant power system to the human output device that can suppress livelines, and does not affect plugging / unplugging
- An input / output device that does not make the operation of the device unstable can be realized.
- the bus operation waveform is reduced by placing the transistor at a position that is a certain short distance from the bus, which is the human output portion of the electronic circuit device. It is possible to settle quickly and make a suitable river for express buses.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Power Sources (AREA)
- Direct Current Feeding And Distribution (AREA)
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1995/001955 WO1997012312A1 (fr) | 1995-09-27 | 1995-09-27 | Dispositif entree/sortie pour la connexion et la deconnexion de lignes actives |
EP95932912A EP0853270B1 (en) | 1995-09-27 | 1995-09-27 | Input/output device for connection and disconnection of active lines |
JP51327497A JP3699729B2 (ja) | 1995-09-27 | 1995-09-27 | 活線挿抜を実現する入出力装置 |
DE69535691T DE69535691T2 (de) | 1995-09-27 | 1995-09-27 | Ein/ausgabe-vorrichtung zum verbinden und abschalten von aktiven leitungen |
AU35776/95A AU3577695A (en) | 1995-09-27 | 1995-09-27 | Input/output device for connection and disconnection of active lines |
US09/043,517 US6038615A (en) | 1995-09-27 | 1995-09-27 | Input/output device for connection and disconnection of active lines |
US09/499,897 US6289407B1 (en) | 1995-09-27 | 2000-02-08 | Input/output device for connection and disconnection of active lines |
US09/932,973 US6393509B2 (en) | 1995-09-27 | 2001-08-21 | Input/output device for connection and disconnection of active lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1995/001955 WO1997012312A1 (fr) | 1995-09-27 | 1995-09-27 | Dispositif entree/sortie pour la connexion et la deconnexion de lignes actives |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/499,897 Continuation US6289407B1 (en) | 1995-09-27 | 2000-02-08 | Input/output device for connection and disconnection of active lines |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997012312A1 true WO1997012312A1 (fr) | 1997-04-03 |
Family
ID=14126314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/001955 WO1997012312A1 (fr) | 1995-09-27 | 1995-09-27 | Dispositif entree/sortie pour la connexion et la deconnexion de lignes actives |
Country Status (6)
Country | Link |
---|---|
US (1) | US6038615A (ja) |
EP (1) | EP0853270B1 (ja) |
JP (1) | JP3699729B2 (ja) |
AU (1) | AU3577695A (ja) |
DE (1) | DE69535691T2 (ja) |
WO (1) | WO1997012312A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011100299A (ja) * | 2009-11-06 | 2011-05-19 | Hitachi Ltd | 処理装置、処理制御システム、およびその制御方法 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6289407B1 (en) * | 1995-09-27 | 2001-09-11 | Hitachi, Ltd. | Input/output device for connection and disconnection of active lines |
US6728811B2 (en) | 1998-03-23 | 2004-04-27 | Hitachi, Ltd. | Input/output device for connection and disconnection of active lines |
US6393547B1 (en) * | 1998-09-14 | 2002-05-21 | Square D Company | Circuit for time-sharing of configurable I/O pins |
US6286066B1 (en) * | 1998-12-15 | 2001-09-04 | Dell U.S.A., L.P. | Hot-plug interface for detecting adapter card insertion and removal |
US6310410B1 (en) * | 1999-10-15 | 2001-10-30 | Texas Instruments Incorporated | Method and apparatus for reducing source voltage deviation in hot plug applications |
US6925516B2 (en) | 2001-01-19 | 2005-08-02 | Raze Technologies, Inc. | System and method for providing an improved common control bus for use in on-line insertion of line replaceable units in wireless and wireline access systems |
US7032051B2 (en) * | 2000-12-11 | 2006-04-18 | Linear Technology Corp. | Methods and circuitry for interconnecting data and clock busses of live backplane circuitry and input/output card circuitry, and methods and circuitry for isolating capacitanes of a live backplane from the capacitanes of at least one input/output card |
TWI505576B (zh) * | 2012-03-16 | 2015-10-21 | Quanta Comp Inc | Electronic device and electrical connector combination |
US20140082406A1 (en) * | 2012-09-18 | 2014-03-20 | Sandisk Technologies Inc. | Data protection through power loss prediction |
KR20180024248A (ko) * | 2016-08-29 | 2018-03-08 | 삼성전자주식회사 | 돌입 전류를 방지하기 위한 프리차지 회로 및 이를 포함하는 전자 장치 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0455623U (ja) * | 1990-09-21 | 1992-05-13 | ||
JPH04143817A (ja) * | 1990-10-04 | 1992-05-18 | Fujitsu Ltd | 活性交換可能な交換モジュール |
JPH05227658A (ja) * | 1992-02-13 | 1993-09-03 | Mitsubishi Electric Corp | 活線挿抜装置 |
JPH06168763A (ja) * | 1992-12-01 | 1994-06-14 | Mitsubishi Electric Corp | 活線挿抜方式 |
JPH0744293A (ja) * | 1993-08-03 | 1995-02-14 | Yokogawa Electric Corp | バスインターフェース装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4079440A (en) * | 1977-01-19 | 1978-03-14 | Hitachi, Ltd. | Printed circuit board capable of being inserted and withdrawn on on-line status |
JPS61195043A (ja) * | 1985-02-25 | 1986-08-29 | Mitsubishi Electric Corp | 高速デジタル信号伝送路のインピ−ダンス整合方式 |
EP0490010A1 (en) * | 1990-12-07 | 1992-06-17 | International Business Machines Corporation | Hot-plugging circuit for the interconnection of cards to boards |
JP3110125B2 (ja) * | 1992-01-28 | 2000-11-20 | 株式会社東芝 | 活線挿抜制御方式 |
US5511171A (en) * | 1993-02-26 | 1996-04-23 | 3Com Corporation | Apparatus for live bus insertion of add-on devices |
US5434752A (en) * | 1993-10-27 | 1995-07-18 | International Business Machines Corporation | System and method for regulating staggered connection insertion timing |
US5555510A (en) * | 1994-08-02 | 1996-09-10 | Intel Corporation | Automatic computer card insertion and removal algorithm |
-
1995
- 1995-09-27 WO PCT/JP1995/001955 patent/WO1997012312A1/ja active IP Right Grant
- 1995-09-27 DE DE69535691T patent/DE69535691T2/de not_active Expired - Lifetime
- 1995-09-27 JP JP51327497A patent/JP3699729B2/ja not_active Expired - Lifetime
- 1995-09-27 US US09/043,517 patent/US6038615A/en not_active Expired - Lifetime
- 1995-09-27 EP EP95932912A patent/EP0853270B1/en not_active Expired - Lifetime
- 1995-09-27 AU AU35776/95A patent/AU3577695A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0455623U (ja) * | 1990-09-21 | 1992-05-13 | ||
JPH04143817A (ja) * | 1990-10-04 | 1992-05-18 | Fujitsu Ltd | 活性交換可能な交換モジュール |
JPH05227658A (ja) * | 1992-02-13 | 1993-09-03 | Mitsubishi Electric Corp | 活線挿抜装置 |
JPH06168763A (ja) * | 1992-12-01 | 1994-06-14 | Mitsubishi Electric Corp | 活線挿抜方式 |
JPH0744293A (ja) * | 1993-08-03 | 1995-02-14 | Yokogawa Electric Corp | バスインターフェース装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0853270A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011100299A (ja) * | 2009-11-06 | 2011-05-19 | Hitachi Ltd | 処理装置、処理制御システム、およびその制御方法 |
US8671300B2 (en) | 2009-11-06 | 2014-03-11 | Hitachi, Ltd. | Processing unit, process control system and control method |
Also Published As
Publication number | Publication date |
---|---|
EP0853270A4 (en) | 2001-10-31 |
DE69535691T2 (de) | 2009-01-15 |
EP0853270B1 (en) | 2008-01-16 |
DE69535691D1 (de) | 2008-03-06 |
US6038615A (en) | 2000-03-14 |
JP3699729B2 (ja) | 2005-09-28 |
AU3577695A (en) | 1997-04-17 |
EP0853270A1 (en) | 1998-07-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8982520B2 (en) | USB port overvoltage protection | |
EP2056208B1 (en) | Circuits and methods for interconnecting bus systems | |
JP4072424B2 (ja) | メモリシステム及びその制御方法 | |
US6920569B1 (en) | Device configured as stand-alone or slave based on detection of power supply in a powered data bus system | |
KR20000005712A (ko) | 다중속도버스용가변슬롯구성 | |
WO1997012312A1 (fr) | Dispositif entree/sortie pour la connexion et la deconnexion de lignes actives | |
JPH07271718A (ja) | コンピュータ・システム | |
US6189058B1 (en) | Crossbar connect switch mechanism for hot plugability | |
CA2018069A1 (en) | Method and apparatus for a rapid interconnection to a computer bus | |
US6289407B1 (en) | Input/output device for connection and disconnection of active lines | |
CN112463686A (zh) | 一种板卡热插拔装置及方法 | |
US6728811B2 (en) | Input/output device for connection and disconnection of active lines | |
CN103475514A (zh) | 无bmc的节点、集群系统及bios修复和升级方法 | |
US20040003162A1 (en) | Point-to-point electrical loading for a multi-drop bus | |
CN112764699A (zh) | 双显示切换装置、方法、服务器及存储介质 | |
JPH11175208A (ja) | 装置をより高電圧の装置から電気的に分離するシステム及び方法 | |
CN102184154B (zh) | 一种实现设备热插拔的系统及方法 | |
CN107480082A (zh) | 一种服务器串口输出方法及结构 | |
JP2002169634A (ja) | 活線挿抜装置 | |
CN117033280B (zh) | 用于i2c总线的热插拔保护电路、接口芯片及热插拔系统 | |
Trinitis et al. | Electrical phenomena during Hot Swap events | |
JP3335171B2 (ja) | 電子装置 | |
TW202427467A (zh) | 用於供電給儲存裝置的設備以及方法 | |
CN115905082A (zh) | 一种arinc659总线的热插拔实现架构 | |
JPH06309243A (ja) | 共通伝送線路上の信号汚損防止装置及び方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA CN JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 09043517 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1995932912 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1995932912 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWG | Wipo information: grant in national office |
Ref document number: 1995932912 Country of ref document: EP |