FIC A360 SMBus Devices, Resource Allocation, Software Functional Overview, Master/Slave, Address

Software Functional Overview

3.3.12 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.

3.3.12 VT82C686B SMBus Connection Devices

SMBus Device	Master/Slave	Address	BIOS Need to Initialization
VT82C686B – Core	Both Host and	02h	Enable SMBus interface and
Logic	Slave		SMBus interrupt
SO-DIMM	Slave	A0h	Not Need
PMU07	Master	10h	Enable PS01 decode interface
MAXIM1617 –	Slave	9Ch	Program the desired temperature
Temperature Sensor			range.
OZ168	Slave	34h	Audio DJ
Battery	Slave	A8h	No Need
Clock Synthesizer	Slave	D2h	Program the desired clock
			frequency (Pin23 output 24MHz,
			Pin22 output 48MHz)

3.3.13 Resource Allocation

This section summarizes the resource allocation of the notebook computer.

I/O Map

	Hex Address		Device
	000	- 01F	8237-1
	020	- 021	8259-1
	022		VIA VT82C686B
	040	- 05F	8254
	060	- 064	Keyboard Controller
	068 – 06C		PMU07 Controller
	070	- 07F	RTC & NMI Mask
	080	- 08F	DMA Page Registers
	092		System Control Port
	0A0	- 0A1	8259-2
	0B2		Advanced Power Management Control Port
	0B3		Advanced Power Management Status Port
	0C0 – 0DF		8237-2
	0F0 – 0FF		Math Coprocessor
	170	- 177	IDE Secondary Command Block
	1F0	- 1F7	IDE Primary Command Block
	200	- 20F	Game Port
	220	- 22F	Sound Blaster
	279		ISA PnP Address
3-12			FIC A360 Service Manual