FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 126

• Manufacturer Part Number: FDC37B78X
• Description: Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
• Manufacturer: SMSC Corporation

Note 1. For alternate function selects, the pin direction is set and controlled internally; i.e., regardless
Note 2. For alternate function selects, INPUT functions cannot be inverted, regardless of the state of
SELECTED
FUNCTION
GPIO
ALT.
of the state of the GPIO configuration register Direction bit.
the GPIO polarity bit, except for the EETI function.
DIRECTION
BIT
B0
X
0
0
0
0
1
1
1
1
TABLE 55 - GPIO CONFIGURATION SUMMARY
1
POLARITY
BIT
B1
1
0
0
1
1
0
0
1
1
0
0
2
126
ENABLE
GROUP
INT.
BIT
B5
0
1
0
1
0
1
0
1
0
1
0
1
Pin is a non-inverted output with
the Interrupt disabled.
Pin is a non-inverted output with
the Interrupt enabled.
Pin is an inverted output with the
Interrupt disabled.
Pin is a inverted output with the
Interrupt enabled.
Pin is a non-inverted input with
the Interrupt disabled.
Pin is a non-inverted input with
the Interrupt enabled.
Pin is an inverted input with the
Interrupt disabled.
Pin is a inverted input with the
Interrupt enabled.
Non-inverted alternate function
with Interrupt disabled.
Non-inverted alternate function
with Interrupt enabled.
Alternate OUTPUT functions are
inverted, Alternate INPUT
functions are non-inverted;
Interrupts are disabled.
Alternate OUTPUT functions are
inverted, Alternate INPUT
functions are non-inverted;
Interrupts are enabled.
DESCRIPTION