LPC47U32X Ver la hoja de datos (PDF) - SMSC -> Microchip

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LPC47U32X

128 Pin Enhanced Super I/O Controller for LPC Bus with Consumer Features and SMBus Controller

SMSC -> Microchip 

clock is connected. This bit determines the clock source for the fan tachometer, LED and

“wake on specific key” logic.

Note 4: The fan control pin FAN comes up as an output and low following a VCC POR and Hard

Reset. This pin powers up as an input on VTR POR and may not be used for wakeup events

under VTR power (VCC=0).

Note 5: VTR can be connected to VCC if no wakeup functionality is required.

Note 6: The GP24/SYSOPT pin requires an external pulldown resistor to put the base IO address for

configuration at 0x02E. An external pullup resistor is required to move the base IO address

for configuration to 0x04E.

Note 7: External pullups must be placed on the nKBDRST and nA20M pins. These pins are GPIOs

that are inputs after an initial power-up (VTR POR). If the nKBDRST and nA20M functions

are to be used, the system must ensure that these pins are high.

Note 8: The LED pins are powered by VTR so that the LEDs can be controlled when the part is under

VTR power.

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