參數(shù)資料
型號: VT8231
廠商: Electronic Theatre Controls, Inc.
元件分類: 晶體
英文描述: CRYSTAL 8.00MHZ 18PF SMD
中文描述: 南橋伏特,PC99柔順
文件頁數(shù): 120/132頁
文件大?。?/td> 1210K
代理商: VT8231
VT8231
Preliminary Revision 0.8
October 29, 1999
-
114-
Function 5 & 6 Registers - AC97 Audio & Modem Codecs
7HFKQRORJLHV,QF
:H &RQQHFW
I/O Offset 50
FM Channel SGD Status ..................... RWC
7
SGD Active (0 = completed or terminated)........RO
6-3
Reserved
........................................ always reads 0
2
SGD Stopped........................................................RO
1
SGD EOL
......................................................RWC
0
SGD Flag
......................................................RWC
I/O Offset 51
FM Channel SGD Control ..................... RW
7
SGD Trigger...........................WO (always reads 0)
0
No effect
1
Trigger SGD Operation
6
SGD Terminate ......................WO (always reads 0)
0
No effect
1
Terminate SGD Operation
5-4
Reserved (Do Not Program)
............always write 0
s
3
SGD Pause
0
Release SGD pause and resume the transfer
from the paused line
1
Pause SGD read operation (SGD pointer stays
at the current address)
2-0
Reserved (No Function)
......................................RW
I/O Offset 52
FM Channel SGD Type .......................... RW
7
Auto Restart
0
Stop SGD Operation at EOL
1
Restart SGD Operation at EOL
6-4
Reserved
........................................ always reads 0
3-2
Interrupt Select
00 Interrupt at last line PCI read
01 Interrupt at last sample sent
10 Interrupt at less than one line to send
11 -reserved-
1
Interrupt on EOL @ End of Block
0
Disable ...................................................default
1
Enable
0
Interrupt on FLAG @ End-of-Blk
0
Disable ...................................................default
1
Enable
I/O Offset 57-54
FM Channel SGD Table Pointer ...... RW
31-0 SGD Table Pointer Base Address (even addr).....W
Current Pointer Address........................................R
I/O Offset 5F-5C
FM Channel SGD Current Count ... RO
31-24 Current SGD Index
23-0 Current SGD Count
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