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LPC47M182 Datasheet(PDF) 25 Page - SMSC Corporation |
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LPC47M182 Datasheet(HTML) 25 Page - SMSC Corporation |
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25 / 223 page  Advanced I/O Controller with Motherboard GLUE Logic Datasheet SMSC LPC47M182 25 Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05) DATASHEET SIGNAL NAME RESISTOR VALUE NOTES SMB_DAT_M 2.7 kohm Pull-up to VCC SMB_DAT_R 2.7 kohm Pull-up to VTR GRN_LED 220 ohm Pull-up to VTR GPIOs design-dependant Pull-up to appropriate voltage (not to exceed 5V) 3.4 Default State of Pins The following table shows the default state of pins. Notes: Off The pin is not powered by suspend supply and is valid under main power only. Hi-Z The pin is powered, but tri-stated either because the pin is open-drain or VCC function is selected on VTR powered pin. The pin requires external pull-up when tri-stated. Active The pin is powered and active high. Running The input clock is powered and running. Input The pin is powered and driven by external circuitry to high or low level. Out The pin is powered and driven to high or low level by the part. The input or output configuration state of the pin is retained and is not affected by PCI Reset or VCC POR. Table 3.4 – Default State of Pins SIGNAL NAME PWR WELL PCI RESET VCC POR VTR POR NOTES REF5V_STBY VTR - - Active This pin requires external pull- up to V_5P0_STBY REF5V VCC Active Active Off This pin requires external pull- up to VCC5V CLOCKI VCC Running Running Off CLOCKI32 VTR Running Running Running nIO_PME VTR - - Hi-Z PCI_CLK VCC Input Input Off nLPCPD VCC Input Input Off nPCI_RESET VCC Input Input Off SER_IRQ VCC Input Input Off nLDRQ VCC Input Input Off nLFRAME VCC Input Input Off LAD[0:3] VCC Input Input Off nDSKCHG VCC Input Input Off nHDSEL VCC Out – low Out – low Off |
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