VT8601 Via, VT8601 Datasheet - Page 32

• Manufacturer Part Number: VT8601
• Description: Slot-1 / Socket-370 PCI North Bridge
• Manufacturer: Via

Device 0 Bus 1 Registers - 2D / 3D Graphics Accelerator
PCI Configuration Registers
PCI Bus Master Registers (2204, 2300, 231x, 232x)
Revision 1.3 September 8, 1999
2D-2C Subsystem Vendor ID
2B-1C -reserved-
1B-18 Memory Base 2 (8MB video overlay) E040 0000 RW
2F-2E Subsystem ID
3B-34 -reserved-
3E-3F -reserved-
Offset Configuration Header
13-10 Memory Base 0 (8MB display mem) E000 0000 RW
17-14 Memory Base 1 (128K mem map IO) E080 0000 RW
33-30 Expansion ROM Base
Offset Device-Specific Configuration
40-8F -reserved-
98-FF -reserved-
93-90 Power Management 1
97-94 Power Management 2
F-C
231D-231C System Side Pitch
1-0
3-2
5-4
7-6
3D
231B-2318
231F-231E
3C
2207-2204
2303-2300
2313-2310
2315-2314
2317-2316
2323-2320
A
B
8
9
I/O Port
7HFKQRORJLHV ,QF
Vendor ID
Device ID
PCI Command
PCI Status
Revision ID
Register Level
Sub Class Code
Base Class Code
-reserved-
Interrupt Line
Interrupt Pin
:H &
:H &R R QQHFW
QQHFW
Master Status
Master Control
System Side Start Address
Master Height
Master Width
FB Start Address & Pitch
-reserved-
Clear Data
PCI Bus Master Registers
0000 0001 RW
Default Acc
Default Acc
Default Acc
1023
8500
0003
0220
0000
0000
0B
nn
00
03
01
00
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
—
—
—
—
—
—
—
R
R
R
R
R
R
R
R
-26-
AGP Registers (2300-23FF)
23AF-238C -reserved-
23B3-23B0 Command Buffer Start Addr
23B7-23B4 Command Buffer End Addr
23FF-23B8
234B-2348
234F-234C
235B-2358
235F-235C
236B-2368
236F-236C
238B-2388
2303-2300
2307-2304
230F-2308
2323-2310
2333-2324
2337-2334
233F-2338
2343-2340
2347-2344
2353-2350
2357-2354
2363-2360
2367-2364
2373-2370
237F-2374
2383-2380
2387-2384
I/O Port
I/O Port
I/O Port
I/O Port
AGP Configuration Regs
(See PCI Bus Master Regs)
Capability List
-reserved-
(See PCI Bus Master Regs)
-reserved-
Capability List Address
-reserved-
AGP Operation Registers
FB Command List Start Addr
FB Command List Size
Ch 1 FB Start Addr / Pitch
Ch 1 Frame Buffer Size
Ch 1 System Start Address
Ch 1 & 2 System Side Pitch
Ch 2 System Start Address
Ch 2 FB Start Addr / Pitch
Ch 2 FB Size
Ch Arb Counter Threshold
Channel 1/0 Control
Global & Channel 2 Control
Cmd List / Ch 0/1/2 Op Status
-reserved-
AGP Configuration Regs
Capability Identifier
AGP Status
AGP Command
AGP Command Buffer Regs Default Acc
-reserved-
VT8601 Apollo ProMedia
Register Summary Tables
Default Acc
Default Acc
Default Acc
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
—
—
—
—
—
—