Rev. 3.0, 03/01, page 195 of 390
14.2.11
PCM Center Playback/MIC ADC Channel (PCMC)
PCMC, a 32-bit Read/Write register, is a channel via which the system can write PCM Center
Playback data to CODEC or read MIC ADC data from CODEC. Bits 31-20 are reserved. The other
bits are initialized to 0 at reset. PCMC 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 PCMC TX FIFO and then be transmitted to the connected CODEC.
When this register is read, the data in the first non-empty entry of PCMC RX FIFO will be
read. PCMC RX FIFO stores the MIC ADC data received from the connected CODEC.
0
Summary of Contents for HD64465
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