Irq map, 4 gpio pin assignment, Sis645dx gpi pin assignment – FIC M296 User Manual
Page 64: Software functional overview
Software Functional Overview
z
IRQ Map
IRQ#
Description
IRQ 0
System Timer
IRQ 1
Keyboard
IRQ 2
[Cascade]
IRQ 3
PHS (Serial)
IRQ 4
Serial Port
IRQ 5
Audio/VGA/USB
IRQ 6
Floppy Disk Drive
IRQ 7
Parallel Port
IRQ 8
RTC Alarm
IRQ 9
ACPI
IRQ10
LAN / Modem or Combo, (Card Bus), IEEE 1394
IRQ11
Reserved for PCMCIA card
IRQ12
PS/2 Mouse
IRQ13
FPU (FERR)
IRQ14
Hard Disk Drive
IRQ15
CD-ROM or DVD-ROM
3.4 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.
•
SiS645DX GPI pin assignment
GPIO
Number
Signal Name
Default
I/O
Notes
GPIO0
LPC_PME0
1
I
0 : LPC_PME0 Event Enable
1 : normal operation
GPIO1
PMUFLASH0
1
O
0 : Flash PMU08 firmware
1 : normal operation
GPIO2
MB_ID0
1
I
0 : Mother Board ID0 Select
1 : normal operation
GPIO3
Q_SMI0
1
I
0 : External K/B SMI0
1 : normal operation
GPIO4 N.C.
-- --
--
GPIO5
GPRSFW_DET
1
I
0 : Updated GPRS F/W
1 : normal operation
GPIO6 N.C.
-- --
--
GPIO7
EC_SCI0
1
I
0 : PMU SCI Detect
1 : PMU SCI Not Detect
GPIO8
PM_RI0
1
I
0 : wakeup event input enable
1 : wakeup event input disable
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FIC M295 / M296 Service Manual