cmos.lst

中断列表(4) 712K

CMOS 34h - (AMI WinBIOS) system-specific information (bits 3-1)
----------R343A------------------------------
CMOS 34h-3Ah - (AWARD) ??? unused ???  Defaults to all FFh's.
----------R35--------------------------------
CMOS 35h - AMI - EXTENDED MEMORY >16M (high byte)
Note:	this and the previous byte contain the total extended memory in 64K
	  blocks
SeeAlso: CMOS 34h"AMI"
----------R35--------------------------------
CMOS 35h - AMI - SHADOWING CONTROL 2
SeeAlso: CMOS 34"AMI"

Bitfields for AMI shadowing control 2:
Bit(s)	Description	(Table C0038)
 7	E0000h Shadow ROM (Bit 1 = On)
 6	E4000h Shadow ROM (Bit 1 = On)
 5	E8000h Shadow ROM (Bit 1 = On)
 4	EC000h Shadow ROM (Bit 1 = On)
 3	F0000h Shadow ROM (Bit 1 = On)
 2	C0000h Shadow ROM (Bit 1 = On)
 1	C4000h Shadow ROM (Bit 1 = On)
 0	reserved
SeeAlso: #C0037
----------R35--------------------------------
CMOS 35h - AMI WinBIOS - EXTENDED MEMORY SIZE IN 64K BLOCKS (low byte)
SeeAlso: CMOS 36h"AMI WinBIOS"
----------R35--------------------------------
CMOS 35h - PHOENIX - Second user defined hard disk (type 48) Cylinders LSB
Note:	used only when PS/2 style password is NOT in effect
----------R35--------------------------------
CMOS 35h - AMI 1990 Hyundai super-NB368S notebook

Bitfields for Hyundai configuration:
Bit(s)	Description	(Table C0039)
 3-1	shadowing
	000  shadow disabled
	011  video BIOS shadowed
	100  main BIOS shadowed
	111  both
 0	coprocessor enabled
----------R36--------------------------------
CMOS 36h - PHOENIX - Second user defined hard disk (type 48) Cylinders MSB
Note:	used only when PS/2 style password is NOT in effect.
----------R36--------------------------------
CMOS 36h - AWARD - IDE control

Bitfields for AWARD IDE control:
Bit(s)	Description	(Table C0040)
 6	IDE 32-bit transfer mode
----------R36--------------------------------
CMOS 36h - AMI - ???

Bitfields for AMI ???:
Bit(s)	Description	(Table C0041)
 1-0	???
 3-2	???
----------R36--------------------------------
CMOS 36h - AMI WinBIOS - EXTENDED MEMORY SIZE IN 64K BLOCKS (high byte)
----------R36--------------------------------
CMOS 36h - AMI 1990 Hyundai super-NB368S notebook - CPU/VIDEO CONFIGURATION

Bitfields for Hyundai CPU/video control:
Bit(s)	Description	(Table C0042)
 7	=1 LCD, 0 CRT at boot time
 6	=1 reversed, 0 normal video mode
 5	=1 external, 0 internal keyboard
 4-3	CPU speed
	00  high
	01  medium
	10  low
 2-1	harddisk vendor 1,2,3,4
 0	relocation enabled
----------R36--------------------------------
CMOS 36h - Quadtel HT12 BIOS 03.05.03 - EXTENDED MEMORY (low byte)
----------R37--------------------------------
CMOS 37h - IBM PS/2 - DATE CENTURY BYTE 
----------R37--------------------------------
CMOS 37h - PHOENIX - Second user defined hard disk (type 48) # of heads
       NOTE: used only when PS/2 style password is NOT in effect.
----------R37--------------------------------
CMOS 37h - AMI Hi-Flex BIOS - ???

Bitfields for AMI Hi-Flex BIOS location 37h:
Bit(s)	Description	(Table C0043)
 7	???
----------R37--------------------------------
CMOS 37h - AMI WinBIOS - SETUP COLORS, PASSWORD SEED

Bitfields for AMI WinBIOS setup colors and password seed:
Bit(s)	Description	(Table C0044)
 7-4	password seed
 3-0	WinBIOS/AMIBIOS setup color options
----------R37--------------------------------
CMOS 37h - Quadtel HT12 BIOS 03.05.03 - EXTENDED MEMORY (high byte)
--------y-R373A------------------------------
CMOS 37h-3Ah - AMI 1990 Hyundai super-NB368S notebook - PASSWORD
Desc:	encoded password, max 4 bytes.
----------R38--------------------------------
CMOS 38h - PHOENIX - Second user defined hard disk (type 48) Write Precomp. LSB
Note:	used only when PS/2 style password is NOT in effect.
--------y-R383D------------------------------
CMOS 38h-3Dh - AMI - Encrypted Password
--------y-R383F------------------------------
CMOS 38h-3Fh - ??? IBM PS/2 - Encrypted Password
Note:	Initialized to 00h in all bytes. Will accept from 1-7 scan codes. 
----------R39--------------------------------
CMOS 39h - PHOENIX - Second user defined hard disk (type 48) Write Precomp. MSB
Note:	used only when PS/2 style password is NOT in effect.
----------R3A--------------------------------
CMOS 3Ah - PHOENIX - Second user defined hard disk (type 48) Parking Zone LSB
Note:	used only when PS/2 style password is NOT in effect.
----------R3B--------------------------------
CMOS 3Bh - PHOENIX - Second user defined hard disk (type 48) Parking Zone MSB
Note:	used only when PS/2 style password is NOT in effect.
----------R3B--------------------------------
CMOS 3Bh - AWARD - CONFIGURATION BITS

Bitfields for AWARD configuration bits:
Bit(s)	Description	(Table C0045)
 4-7	Screen Colors Used in Setup (see #C0046)
 3	??? Default = 0
 2	??? Default = 0
 1	??? Default = 1
 0	Enable External Cache

(Table C0046)
Values for AWARD setup colors:
 0000  Yellow/White on Blue (Default)
 0001  Magenta/White on Blue
 0010  Yellow/Black on Green
 0011  Yellow/Green on Cyan
 0100  Black/Yellow on Cyan
 0101  Brown/White on Cyan
 0110  White/Green on Red
 0111  White/White on Red
 1000  Green/White on Magenta
 1001  Yellow/Red on Magenta
 1010  Red/White on Grey
 1011  Yellow/White on Grey
 1100  Cyan/White on Grey
 1101  Cyan/Yellow on Black
 1110  White on Black (Monochrome)
 1111  Green/Red on Black
SeeAlso: #C0045
----------R3C--------------------------------
CMOS 3Ch - PHOENIX - Second user defined hard disk (type 48) Sectors per track
Note:	used only when PS/2 style password is NOT in effect.
----------R3C--------------------------------
CMOS 3Ch - AWARD - Boot Configuration Bits

Bitfields for AWARD boot configuration bits:
Bit(s)	Description	(Table C0047)
 7	disable virus warning on boot
 6,5	???
 4	Quick POST Enabled
 3,2	???
 1	Enable Turbo Switch Input
 0	0 = Boot from A, then C
	1 = Boot from C, then A
----------R3C--------------------------------
CMOS 3Ch - Quadtel HT12 BIOS 03.05.03 - TOTAL MEMORY (low byte)
SeeAlso: CMOS 3Dh"Quadtel"
----------R3D--------------------------------
CMOS 3Dh - AWARD - ???
----------R3D--------------------------------
CMOS 3Dh - Phoenix - ???
Note:	bit 3 = base memsize 512K/640K
----------R3D--------------------------------
CMOS 3Dh - Quadtel HT12 BIOS 03.05.03 - TOTAL MEMORY (high byte)
SeeAlso: CMOS 3Ch"Quadtel"
----------R3E--------------------------------
CMOS 3Eh - AMI - Extended CMOS Checksum, High Byte
Note:	this checksum covers locations 34h - 3Dh, but is not used by some
	  later AMI BIOSes
----------R3E--------------------------------
CMOS 3Eh - AWARD - BOOT CONFIGURATION BITS

Bitfields for AWARD boot configuration bits:
Bit(s)	Description	(Table C0048)
 7	Shadow Video BIOS at C000h
 6,5	???
 4	Swap Floppy Drive
 3	???
 2	Don't Halt on Diskette Errors at Boot
 1	Don't Halt on Keyboard Errors at Boot
 0	Never Halt for any error at Boot
----------R3E--------------------------------
CMOS 3Eh - Quadtel HT12 BIOS 03.05.03 - ???

Bitfields for Quadtel ???:
Bit(s)	Description	(Table C0049)
 2	system error occurred ?? (timer/RTC)
 0	=0 extended system configuration loaded
	=1 checksum error
----------R3E--------------------------------
CMOS 3Eh - Phoenix - SHADOWING CONTROL

Bitfields for Phoenix shadowing control:
Bit(s)	Description	(Table C0050)
 7	relocate enable
 1	shadow video enable
 0	shadow BIOS enable
----------R3F--------------------------------
CMOS 3Fh - AMI - Extended CMOS Checksum, Low Byte
Note:	this checksum covers locations 34h - 3Dh, but is not used by some
	  later AMI BIOSes
----------R3F--------------------------------
CMOS 3Fh - AWARD - ???
---------------------------------------------

 End of original 64 CMOS RAM bytes. Many modern chips now contain 128
 bytes and the IBM PS/2 has provision for 2k of "Expansion CMOS". 
 The AMI HI-FLEX description is below. If the chip does have only
 64 bytes, addresses will wrap so that requests for bytes 40h-7Fh will 
 return the same values as 00h-3Fh.

--------p-R40--------------------------------
CMOS 40h - AMI 1990 Hyundai super-NB368S notebook - POWER-SAVE CONFIGURATION

Bitfields for Hyundai power-save configuration:
Bit(s)	Description	(Table C0051)
 7	power save enabled
 6-0	HD power save wait, units of 1 minute (0-20)
----------R40--------------------------------
CMOS 40h - AWARD - Motherboard Chipset (SiS 85C501/85C502 shown)

Bitfields for AWARD motherboard chipset:
Bit(s)	Description	(Table C0052)
 7-1	???
 0	Automatic Configuration Enabled (Default: 1=enabled)
----------R4055------------------------------
CMOS 40h-55h - AMI WinBIOS - PCI BIOS setup data
----------R41--------------------------------
CMOS 41h - AMI - WAIT STATE CONFIGURATION

Bitfields for AMI wait state configuration:
Bit(s)	Description	(Table C0053)
 7-6	IOR/IOW Wait states
 5-4	16-bit DMA Wait States
 3-2	8-bit DMA Wait States
 1	EMR bit
 0	DMA Clock Source
----------R4243------------------------------
CMOS 42h-43h - ???
----------R4244------------------------------
CMOS 42h-44h - AWARD - ??? chipset setup ???
----------R44--------------------------------
CMOS 44h - AMI - NMI CONTROL

Bitfields for AMI NMI control:
Bit(s)	Description	(Table C0054)
 4	NMI Power Fail Warning
 3	NMI Local Bus Timeout
----------R45--------------------------------
CMOS 45h - AMI - BUS DELAYS

Bitfields for AMI bus delays:
Bit(s)	Description	(Table C0055)
 7-6	AT Bus 32-Bit Delay
 5-4	AT Bus 16-Bit Delay
 3-2	AT Bus 8-Bit Delay
 1-0	AT Bus I/O Delay
SeeAlso: #C0058
----------R45--------------------------------
CMOS 45h - AMI (Saturn) - CACHE TAGS
SeeAlso: CMOS 46h"Saturn"

Bitfields for AMI (Saturn) cache tags:
Bit(s)	Description	(Table C0056)
 7	base memory 640K instead of 512K
 4-3	external cache tag width
	00 8 bits
	01 9 bits
	10 7 bits
	11 7 bits
----------R45--------------------------------
CMOS 45h - AWARD - Motherboard Chipset (SiS 85C501/85C502 shown)

Bitfields for AWARD motherboard chipset:
Bit(s)	Description	(Table C0057)
 7	System BIOS Cacheable (Default: 1=enabled)
 6	Video BIOS Cacheable  (Default: 1=enabled)
 5-0	???
----------R46--------------------------------
CMOS 46h - AMI - BUS WAIT STATES

Bitfields for AMI bus wait states:
Bit(s)	Description	(Table C0058)
 7-6	AT Bus 32 Bit Wait States
 5-4	AT Bus 16 Bit Wait States
 3-2	AT Bus	8 Bit Wait States
 1-0	AT Bus Clock Source
SeeAlso: #C0055
----------R46--------------------------------
CMOS 46h - AMI (Saturn) - SHADOW RAM CONTROL 1

Bitfields for AMI (Saturn) shadow RAM control 1:
Bit(s)	Description	(Table C0059)
 7-6	D000h-D3FFh shadow RAM
	00 don't shadow
	01 absent
	10 shadow
	11 reserved
 5-4	CC00h-CFFFh shadow RAM (as for D000h-D3FFh)
 3-2	C800h-CBFFh shadow RAM (as for D000h-D3FFh)
 1-0	C000h-C7FFh shadow RAM (as for D000h-D3FFh)
SeeAlso: #C0060
----------R4647------------------------------
CMOS 46h-47h - AWARD - ??? chipset setup ???
----------R47--------------------------------
CMOS 47h - AMI (Saturn) - SHADOW RAM CONTROL 2

Bitfields for AMI (Saturn) shadow RAM control 2:
Bit(s)	Description	(Table C0060)
 7-6	DC00h-DFFFh shadow RAM
	00 don't shadow
	01 absent
	10 shadow
	11 reserved
 5-4	D800h-DBFFh shadow RAM (as for DC00h-DFFFh)
 3-2	D400h-D7FFh shadow RAM (as for DC00h-DFFFh)
 0	PCI VGA palette snooping 
SeeAlso: #C0059
----------R4750------------------------------
CMOS 47h-50h - ???
----------R484F------------------------------
CMOS 48h-4Fh - AWARD - ??? unused ???  Defaults to all FFh's.
--------y-R484F------------------------------
CMOS 48h-4Fh - PhoenixBIOS A486 v1.01.E - USER PASSWORD
Desc:	stores scan-codes for the password in the first seven bytes, and the
	  low byte of the password checksum in the eighth byte
SeeAlso: CMOS 50h"A486 v1.01.E"
----------R48--------------------------------
CMOS 48h - AMI (Saturn) - EXTERNAL CACHE

Bitfields for AMI (Saturn) external cache:
Bit(s)	Description	(Table C0061)
 5	external cache write-back instead of write-through
----------R49--------------------------------
CMOS 49h - AMI (Saturn) - PERFORMANCE

Bitfields for AMI (Saturn) performance: