Rev. 3.0, 03/01, page 215 of 390
14.2.23
AC97 TAG Register (ATAGR)
ATAGR, a 32-bit Read/Write register, is used to write TX tag or read RX tag. Bits 18-13 are
reserved. The other bits are initialized to 0 at reset. ATAGR is not initialized in STANDBY mode.
Bit
31
30
29
28
27
26
25
24
Bit Name
CR
RXVS1
RXVS2
RXVS3
RXVS4
RXVS5
RXVS6
RXVS7
Initial Value
0
0
0
0
0
0
0
0
R/W
R
R
R
R
R
R
R
R
Bit
23
22
21
20
19
18
17
16
Bit Name
RXVS8
RXVS9
RXVS10 RXVS11 RXVS12 -
-
-
Initial Value
0
0
0
0
0
0
0
0
R/W
R
R
R
R
R
-
-
-
Bit
15
14
13
12
11
10
9
8
Bit Name
-
-
-
TXVS3
TXVS4
TXVS5
TXVS6
TXVS7
Initial Value
0
0
0
0
0
0
0
0
R/W
-
-
-
R/W
R/W
R/W
R/W
R/W
Bit
7
6
5
4
3
2
1
0
Bit Name
TXVS8
TXVS9
TXVS10 TXVS11 TXVS12 ZERO
ZERO
ZERO
Initial Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit
Description
Default
31
CODEC Ready (CR): When this bit is set to 1, it indicates that the connected CODEC is
ready.
0
30 - 19
RX Valid Slot 1-12 (RXVS1-12): These bits indicate which slots read from CODEC are
valid.
0
18 - 13
Reserved
0
12 - 3
TX Valid Slot 3-12 (TXVS3-12): These bits are valid only in AC97 Version 1.03. System
can write these bits to indicate which slots of the connected CODEC are valid.
0
2 - 0
ZERO: Don’t write 1 to these bits.
0
Содержание HD64465
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