FDC37B78X 查看數據表（PDF） - SMSC -> Microchip

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FDC37B78X

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

SMSC -> Microchip 

TABLE 55 - GPIO CONFIGURATION SUMMARY

GROUP

INT.

SELECTED DIRECTION POLARITY ENABLE

FUNCTION

BIT

BIT

BIT

DESCRIPTION

B0

B1

B5

GPIO

0

0

0

Pin is a non-inverted output with

the Interrupt disabled.

0

0

1

Pin is a non-inverted output with

the Interrupt enabled.

0

1

0

Pin is an inverted output with the

Interrupt disabled.

0

1

1

Pin is a inverted output with the

Interrupt enabled.

1

0

0

Pin is a non-inverted input with

the Interrupt disabled.

1

0

1

Pin is a non-inverted input with

the Interrupt enabled.

1

1

0

Pin is an inverted input with the

Interrupt disabled.

1

1

1

Pin is a inverted input with the

ALT.

X1

Interrupt enabled.

0

0

Non-inverted alternate function

with Interrupt disabled.

0

1

Non-inverted alternate function

with Interrupt enabled.

12

0

Alternate OUTPUT functions are

inverted, Alternate INPUT

functions are non-inverted;

Interrupts are disabled.

1

Alternate OUTPUT functions are

inverted, Alternate INPUT

functions are non-inverted;

Interrupts are enabled.

Note 1. For alternate function selects, the pin direction is set and controlled internally; i.e., regardless

of the state of the GPIO configuration register Direction bit.

Note 2. For alternate function selects, INPUT functions cannot be inverted, regardless of the state of

the GPIO polarity bit, except for the EETI function.

126

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