參數(shù)資料
型號(hào): 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): 122/132頁
文件大?。?/td> 1210K
代理商: VT8231
VT8231
Preliminary Revision 0.8
October 29, 1999
-
116-
Function 5 & 6 Registers - AC97 Audio & Modem Codecs
7HFKQRORJLHV,QF
:H &RQQHFW
Offset E3-E0
AC97 Controller Command / Status ..... RW
31-30 Codec ID
.........................................................RW
00 Select Primary Codec
01 Select Secondary Codec 01
10 Select Secondary Codec 10
11 -reserved-
29
Reserved
........................................ always reads 0
28
AC97 Controller Busy
.........................................RO
0
Primary Codec is ready for a register access
command
1
AC97 Controller is sending a command to the
primary codec (commands are not accepted)
27
Reserved
........................................ always reads 0
26
Secondary Codec 2 Data / Status Valid
...........RWC
0
Not Valid
1
Valid (OK to Read bits 0-23)
25
Secondary Codec 1 Data / Status Valid
...........RWC
0
Not Valid
1
Valid (OK to Read bits 0-23)
24
Primary Codec Data / Status Valid
.................RWC
0
Not Valid
1
Valid (OK to Read bits 0-23)
23
Codec Command Register Read/Write Mode
..RW
0
Select Codec command register write mode
1
Select Codec command register read mode
22-16 Codec Command Register Index [7:1]
..............RW
Index of the AC97 codec command register to access
(in the attached codec). Data must be written before
or at the same time as Index as writing to the index
triggers the AC97 controller to access the addressed
codec register over the AC-link interface.
15-0 Codec Command Register Data / Status
...........RW
W Codec Command Register Data
R
Codec Status Register Data
Offset F3-F0
SGD Status Shadow ................................. RO
31
Reserved
........................................always reads 0
30
Write Chan 1 SGD STOP Shadow...........(Rx70[2])
29
Write Chan 1 SGD EOL Shadow.............(Rx70[1])
28
Write Chan 1 SGD FLAG Shadow..........(Rx70[0])
27
Reserved
........................................always reads 0
26
Write Chan 0 SGD STOP Shadow...........(Rx60[2])
25
Write Chan 0 SGD EOL Shadow.............(Rx60[1])
24
Write Chan 0 SGD FLAG Shadow..........(Rx60[0])
23
22
21
20
19
18
17
16
Reserved
FM Read Chan SGD STOP Shadow .......(Rx50[2])
FM Read Chan SGD EOL Shadow .........(Rx50[1])
FM Read Chan SGD FLAG Shadow.......(Rx50[0])
Reserved
........................................always reads 0
3D Read Chan SGD STOP Shadow.........(Rx40[2])
3D Read Chan SGD EOL Shadow...........(Rx40[1])
3D Read Chan SGD FLAG Shadow........(Rx40[0])
........................................always reads 0
15
14
13
12
11
10
9
8
Reserved
DX3 Read Chan SGD STOP Shadow......(Rx30[2])
DX3 Read Chan SGD EOL Shadow........(Rx30[1])
DX3 Read Chan SGD FLAG Shadow .....(Rx30[0])
Reserved
........................................always reads 0
DX2 Read Chan SGD STOP Shadow......(Rx20[2])
DX2 Read Chan SGD EOL Shadow........(Rx20[1])
DX2 Read Chan SGD FLAG Shadow .....(Rx20[0])
........................................always reads 0
7
6
5
4
3
2
1
0
Reserved
DX1 Read Chan SGD STOP Shadow......(Rx10[2])
DX1 Read Chan SGD EOL Shadow........(Rx10[1])
DX1 Read Chan SGD FLAG Shadow .....(Rx10[0])
Reserved
........................................always reads 0
DX0 Read Chan SGD STOP Shadow......(Rx00[2])
DX0 Read Chan SGD EOL Shadow........(Rx00[1])
DX0 Read Chan SGD FLAG Shadow .....(Rx00[0])
........................................always reads 0
相關(guān)PDF資料
PDF描述
VT82885(24DIP) Real-Time Clock
VT82885(28PLCC) Real-Time Clock
VT82887 Real-Time Clock
VT82885 Real Time Clock
VT82C42 VT82C42 Keyboard Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VT82885 制造商:未知廠家 制造商全稱:未知廠家 功能描述:electrical characteristics, bus timing and pin descriptions follows.
VT82885(24DIP) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock
VT82885(28PLCC) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock
VT82887 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real Time Clock
VT82A192 制造商:未知廠家 制造商全稱:未知廠家 功能描述: