Software Functional Overview
3-14
FIC A360 Service Manual
IRQ 4
Serial Port
IRQ 5
Audio / USB
IRQ 6
Floppy Disk Drive
IRQ 7
Parallel Port
IRQ 8
RTC Alarm
IRQ 9
ACPI
IRQ10
LAN / Modem / CardBus/
VGA
IRQ11
Reserved for PCMCIA Card
IRQ12
PS/2 Mouse
IRQ13
FPU
IRQ14
Hard Disk Drive
IRQ15
CD-ROM or DVD-ROM
3.3.14
GPIO Pin Assignment
The GPI and GPO pins connected to system devices. The BIOS can get device’s status and
control the device via the GPI and GPO pins.
VT82C686B GPI pin assignment
Pin Name Function Name
Connected Device
Description
GPI[0] Pull
High
GPI[1] ECSCI#
PMU07
Low
=
SCI request from PMU07
GPI[2]
BATLOW#
PMU07
Low = Battery Low Activated
GPI[3]
MEDIA_DET
OZ168
Wake Up system for Audio DJ.
(Program to LID function)
GPI[4]
IRQ6
Assign to IRQ6
GPI[5] PME#
CardBus, LAN,
Modem, IEEE1394
Low = PME Request
GPI[6]
SENSE#
PHS connector
Low = PHS Connected
GPI[7]
WAKECOM#
PMU07
Low = Ring signal from PMU07
GPI[8] GPO[8]
Refer
GPO[8].
GPI[9] GPO[9]
Refer
GPO[9]
GPI[10] PANELID0
LCD
FPC
LCD Panel Type Select
GPI[11] PANELID1
LCD
FPC
LCD Panel Type Select
GPI[16] N.C.
GPI[17] PANELID2
LCD
FPC
LCD Panel Type Select
GPI[18] MB_ID0
DIP
Switch
Mother board revision ID data 0
GPI[19] MB_ID1
DIP
Switch
Mother board revision ID data 1
GPI[20]
INTE_LATCH
M38869
Internet key status
GPI[21]
MAIL_LATCH
M38869
Mail key status
GPI[22] AGP_BUSY# VT8603
GPI[23] PANELID3
LCD
FPC
LCD Panel Type Select