FIC a440 服务手册
Software Functional Overview
FIC A440 Series Service Manual
3-11
3.3.13 SMBus Devices
The SMBus is a two-wire interface through which the system can communicate with power-
related chips. The BIOS should initialize the SMBus devices during POST.
related chips. The BIOS should initialize the SMBus devices during POST.
SMBus Device
Host/Slave
Address
BIOS Need to Initialize
VIA VT82C686A
Both Host and
Slave
Slave
10h
Enable SMBus interface and
SMBus interrupt
SMBus interrupt
PIC16C62 – Micro P
Both Host and
Slave
Slave
04h No
need
IMISC671 – Clock
Synthesizer
Synthesizer
Slave
D2h
Program the desired clock
frequency (Pin23 output 24MHz,
Pin22 output 48MHz)
frequency (Pin23 output 24MHz,
Pin22 output 48MHz)
BQ 2040 – Smart Battery Both Host and
Slave
16h No
need
3.3.14 Resource Allocation
This section summarizes the resource allocation of the notebook computer.
I/O Map
I/O Map
Hex Address
Device
000 – 01F
8237-1
020 – 021
8259-1
022 VIA
VT82C686A
040 – 05F
8254
060 – 06F
Keyboard Controller
070 – 07F
RTC & NMI Mask
080 – 08F
DMA Page Registers
092
System Control Port
0A0 – 0A1
8259-2
0C0 – 0DF
8237-2
0F0 – 0FF
Math Coprocessor
170 – 177
Secondary IDE Controller
1F0 – 1F7
Primary IDE Controller
200 – 20F
Game Port
220 – 22F
Sound Blaster
279
PnP configuration – Address port
2F8 – 2FF
FIR
330 – 333
MIDI
370 – 371
Sound chip control port
378 – 37A
Parallel Port
388 – 38B
FM Synthesizer
398 – 399
Super I/O Chip
3B0 – 3DF
Video Controller
3E0 – 3E1
PCMCIA Controller
3E8 – 3EF
Fax/Modem