Rev. 3.0, 03/01, page 199 of 390
14.2.15
Line 2 Channel Data Register (LINE2)
LINE2, a 32-bit Read/Write register, is a channel via which the system can write Line 2 DAC data
to CODEC or read Line2 ADC data from CODEC. Bits 31-20 are reserved. The other bits are
initialized to 0 at reset. LINE2 is not initialized in STANDBY mode.
Bit
31
30
29
28
27
26
25
24
Bit Name
-
-
-
-
-
-
-
-
Initial Value
-
-
-
-
-
-
-
-
R/W
-
-
-
-
-
-
-
-
Bit
23
22
21
20
19
18
17
16
Bit Name
-
-
-
-
D19
D18
D17
D16
Initial Value
-
-
-
-
0
0
0
0
R/W
-
-
-
-
R/W
R/W
R/W
R/W
Bit
15
14
13
12
11
10
9
8
Bit Name
D15
D14
D13
D12
D11
D10
D9
D8
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
7
6
5
4
3
2
1
0
Bit Name
D7
D6
D5
D4
D3
D2
D1
D0
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 - 20
Reserved
-
19 - 0
Data 19-0 (D19-0): When this register is written, these bits will be written to the first empty
entry of LINE 2 TX FIFO and then be transmitted to the connected CODEC.
When this register is read, the first non-empty entry of LINE2 RX FIFO will be read. LINE2
RX FIFO stores Line 2 ADC data from the connected CODEC.
0
Summary of Contents for HD64465
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