AMD-761 Datasheet, PDF (149/264 Pages) Advanced Micro Devices – AMD-761-TM System Controller Software/BIOS Design Guide

24081D—February 2002
Preliminary Information
AMD-761™ System Controller Software/BIOS Design Guide
Miscellaneous Device 1 Control
Dev1:0x40
31
30
29
28
27
26
25
24
Bit
Reserved
Reset
0
0
0
0
0
0
0
0
R/W
R
23
22
21
20
19
18
17
16
Bit
Reserved
Reset
0
0
0
0
0
0
0
0
R/W
R
15
14
13
12
11
10
9
8
Bit
Reserved
Reset
0
0
0
0
0
0
0
0
R/W
R
7
6
5
4
3
2
1
0
Bit
Reserved
Int_Pin_Cntl
Reset
0
0
0
0
0
0
0
0
R/W
R
R/W
Register Description
Bit Definitions
Bit Name
31–1 Reserved
0 Int_Pin_Cntl
Programming Notes
Miscellaneous Device 1 Control (Dev1:0x40)
Function
Reserved
Interrupt Pin Control
This bit controls the IntPin field in AGP/PCI Interrupt and Bridge Control register
(Dev1:0x3C).
0 = IntPin field is read-only.
1 = IntPin field is read-writable for BIOS initialization.
Chapter 2
AMD-761™ System Controller Programmer’s Interface
137