FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

GPIO OPERATION

The operation of the GPIO ports is illustrated in FIGURE 3. Note: FIGURE 3 is for illustration

purposes only and is not intended to suggest specific implementation details.

FIGURE 3 - GPIO FUNCTION ILLUSTRATION

GPIO

Configuration

Register bit-1

(Polarity)

GPIO

Configuration

Register bit-0

(Input/Output)

SD-bit

D-TYPE

DQ

GPx_nIOW

0

Transparent

QD

1

GPx_nIOR

GPIO

Data Register

Bit-n

10

GPIO

Configuration

Register bit-2 or 5

(GROUP INT. ENABLE)

GP Group Interrupts (1 or 2)

GPIO

PIN

127

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