FDC37C932APM View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C932APM

Plug and Play Compatible Ultra I/O™ Controller with Soft Power Management

SMSC -> Microchip 

Table 106 - Auxilliary I/O, Logical Device 8 [Logical Device Number = 0x08]

NAME

REG INDEX

DEFINITION

STATE

GP21

Default = 0x01

on VTR POR

GP22

Default = 0x01

on VTR POR

GP23

Default = 0x01

on VTR POR

0xE9 General Purpose I/0 bit 2.1

C

Bit[0] In/Out =1 Input, =0 Output

Bit[1] Polarity =1 Invert, =0 No Invert

Bit[2] Int En

=1 Enable Combined IRQ

=0 Disable Combined IRQ

Bit[4:3] Alt Func:

=00 Select basic I/O function

=01 Serial EEPROM Data In

=10 AB_DATA

Bit[6:5] Reserved = 0000

Bit[7] Open Collector:

=1 Open Collector,

=0 Push Pull

0xEA General Purpose I/0 bit 2.2

C

Bit[0] In/Out =1 Input, =0 Output

Bit[1] Polarity =1 Invert, =0 No Invert

Bit[2] Int En

=1 Enable Combined IRQ

=0 Disable Combined IRQ

Bit[4:3] Alt Func:

=01 Serial EEPROM Data Out

=00 Select basic I/O function

=10 AB_CLK

Bit[6:5] Reserved = 0000

Bit[7] Open Collector:

=1 Open Collector,

=0 Push Pull

0xEB General Purpose I/0 bit 2.3

C

Bit[0] In/Out =1 Input, =0 Output

Bit[1] Polarity =1 Invert, =0 No Invert

Bit[2] Int En

=1 Enable Combined IRQ

=0 Disable Combined IRQ

Bit[4:3] Function Select

=00 GPIO

=01 Serial EEPROM Clock

=10 Either Edge Triggered Interrupt Input 2 Enable

=11 Reserved

Bit[7:5] Reserved = 0000

232

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