vt82c586a ETC-unknow, vt82c586a Datasheet - Page 18

• Manufacturer Part Number: vt82c586a
• Description: Integrated Peripheral Controller
• Manufacturer: ETC-unknow

PCI Function 0 Registers - PCI-to-ISA Bridge
Configuration Space PCI-to-ISA Bridge Header Registers
Configuration Space PCI-to-ISA Bridge-Specific Registers
Preliminary Revision 0.1 October 13, 1996
Offset PCI Configuration Space Header
Offset ISA Bus Control
Offset Plug and Play Control
34-3B -reserved- (unassigned)
4F-4E DMA / Master Mem Access Control 3
10-27 -reserved- (base address registers)
28-2F -reserved- (unassigned)
30-33 -reserved- (expansion ROM base
51-53 -reserved-
1-0 Vendor ID
3-2 Device ID
5-4 Command
7-6 Status
3C
3D
4A
4B
4C
4D
3E
3F
40
41
42
43
44
45
46
47
48
49
50
54
55
56
57
A
B
C
D
E
8
9
F
Revision ID
Programming Interface
Sub Class Code
Base Class Code
-reserved- (cache line size)
-reserved- (latency timer)
Header Type
Built In Self Test (BIST)
-reserved- (interrupt line)
-reserved- (interrupt pin)
-reserved- (min gnt)
-reserved- (max lat)
ISA Bus Control
Refresh and Port 92
ISA Clock Control
ROM Decode Control
Keyboard Controller Control
Type F DMA Control
Miscellaneous Control 1
Miscellaneous Control 2
Miscellaneous Control 3
-reserved-
-reserved-
DMA / Master Mem Access Control 1
DMA / Master Mem Access Control 2
PNP DRQ Routing
PCI IRQ Edge / Level Selection
PNP IRQ Routing 1
PNP IRQ Routing 2
PNP IRQ Routing 3
IDE Interrupt Routing

Default
Default
Default
1106
0586
000F
0200
0300
00
00
01
nn
00
01
06
00
00
80
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
04
00
00
00
24
00
00
00
00
00
RW
WC
Acc
Acc
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Acc
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
RO
RO
RO
—
—
—
—
—
—
—
—
—
—
—
—
—
-12-
† Power-up default value depends on external strapping
Offset Power Management
97-FF -reserved-
85-84 SMI Event Enable
87-86 SMI Status
8A
8B
8C
8D
8E
80
81
82
83
88
89
90
91
92
93
94
95
96
Primary Activity Detect Enable
-reserved-
Primary Activity Detect Status
-reserved-
Timer Control 1
Timer Control 2
Timer Control 3
GP Timer Reload Enable
Conserve Mode / Secondary Event
Miscellaneous Control
STPCLK# Duty Cycle
ISA Interrupt 7-0 as Primary Event
ISA Interrupt 15-8 as Primary Event
ISA Interrupt 7-0 as Secondary Event
ISA Interrupt 15-8 as Secondary
External SMI Pin Status
Power-Up Strap Option 1
Power-Up Strap Option 2
Register Overview
VT82C586A
Default
0000
0000
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
†
†
WC
WC
Acc
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RO
RO
RO
—
—
—