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| 型號(hào)： | VT8231 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類(lèi)： | 晶體 |
| 英文描述： | CRYSTAL 8.00MHZ 18PF SMD |
| 中文描述： | 南橋伏特，PC99柔順 |
| 文件頁(yè)數(shù)： | 115/132頁(yè) |
| 文件大小： | 1210K |
| 代理商： | VT8231 |
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VT8231
Preliminary Revision 0.8
October 29, 1999
-
109-
Function 5 & 6 Registers - AC97 Audio & Modem Codecs
7HFKQRORJLHV,QF
:H &RQQHFW
PCI Configuration Space Header
–
Function 6 Modem
Offset 1-0 - Vendor ID ....................................................... RO
0-7
Vendor ID
................. (1106h = VIA Technologies)
Offset 3-2 - Device ID ......................................................... RO
0-7
Device ID
(3068h = 8231 Modem Codec)
Offset 5-4 - Command ....................................................... RW
15-10 Reserved
........................................ always reads 0
9
Fast Back-to-Back
.......................................fixed at 0
8
SERR# Enable
.............................................fixed at 0
7
Address Stepping
........................................fixed at 0
6
Parity Error Response
................................fixed at 0
5
VGA Palette Snoop
.....................................fixed at 0
4
Memory Write and Invalidate
...................fixed at 0
3
Special Cycle Monitoring
...........................fixed at 0
2
Bus Master
.................................................fixed at 0
1
Memory Space
.............................................fixed at 0
0
I/O Space
............................... default=0 (disabled)
Offset 7-6 - Status ........................................................... RWC
15
Detected Parity Error
.................................fixed at 0
14
Signalled System Error
...............................fixed at 0
13
Received Master Abort
...............................fixed at 0
12
Received Target Abort
...............................fixed at 0
11
Signalled Target Abort
...............................fixed at 0
10-9 DEVSEL# Timing
00 Fast
01 Medium.................................................... fixed
10 Slow
11 Reserved
8
Data Parity Error
........................................fixed at 0
7
Fast Back-to-Back Capable
........................fixed at 0
6-0
Reserved
........................................ always reads 0
Offset 8 - Revision ID
(nnh)
............................................... RO
7-0
Silicon Revision Code (0 indicates first silicon)
Offset 9 - Programming Interface
(00h)
......................... *RO
Offset A - Sub Class Code
(80h)
...................................... *RO
Offset B - Base Class Code
(07h)
.................................... *RO
*Registers 9-B are RW if function 5-6 Rx44[5] = 1
Offset D - Latency Timer
(00h)
......................................... RO
Offset E - Header Type
(00h)
............................................ RO
Offset F - BIST
(00h)
......................................................... RO
Offset 13-10 - Base Address 0
–
SGD Control / Status .. RW
31-16 Reserved
........................................always reads 0
15-8 Base Address
.........................................default = 00h
7-0
00000001b (256 bytes)
Offset 1F-1C - Base Address 3
–
Codec Reg Shadow .... RW
31-16 Reserved
........................................always reads 0
15-8 Base Address
.........................................default = 00h
7-0
00000001b (256 bytes)
Offset 3C - Interrupt Line ............................................... RW
7-4
Reserved
........................................always reads 0
3-0
Audio Interrupt Routing
0000 Disabled.................................................default
0001 IRQ1
0010 Reserved
0011 IRQ3
0100 IRQ4
0101 IRQ5
0110 IRQ6
0111 IRQ7
1000 IRQ8
1001 IRQ9
1010 IRQ10
1011 IRQ11
1100 IRQ12
1101 IRQ13
1110 IRQ14
1111 Disabled
Offset 3D - Interrupt Pin
(03h)
......................................... RO
Offset 3E - Minimum Grant
(00h)
.................................... RO
Offset 3F - Maximum Latency
(00h)
................................ RO
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