Allwinner A20 - Page 703

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 703 / 812
Offset: 0x04
Register Name: DA_FAT0
Default Value: 0x0000_000C
Bit
Read/Write
Default
Description
00: 16 BCLK
01: 20 BCLK
10: 24 BCLK
11: 32 BCLK
1:0
R/W
0
FMT
Serial Data Format
00: Standard I2S Format
01: Left Justified Format
10: Right Justified Format
11: Reserved
6.9.5.3. DIGITAL AUDIO FORMAT REGISTER 1
Offset: 0x08
Register Name: DA_FAT1
Default Value: 0x0000_4020
Bit
Read/Write
Default
Description
31:15
/
/
/
14:12
R/W
0x4
PCM_SYNC_PERIOD
PCM SYNC Period Clock Number
000: 16 BCLK period
001: 32 BCLK period
010: 64 BCLK period
011: 128 BCLK period
100: 256 BCLK period
Others : Reserved
11
R/W
0
PCM_SYNC_OUT
PCM Sync Out
0: Enable PCM_SYNC output in Master mode
1: Suppress PCM_SYNC whilst keeping PCM_CLK running.
Some Codec utilize this to enter a low power state.
10
R/W
0
PCM Out Mute
Write 1 force PCM_OUT to 0
9
R/W
0
MLS