Allwinner A20 - Page 453

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 453 / 812
Offset: 0x058
Register name: Aud_CH_Status0
Bits
Read
/Write
Default
/Hex
Description
For bit 1 = “0”, Linear PCM audio mode:
000: 2 audio channels without pre-emphasis
001: 2 audio channels with 50 μs / 15 μs pre-emphasis
010: Reserved (for 2 audio channels with pre-emphasis)
011: Reserved (for 2 audio channels with pre-emphasis)
100~111: Reserved
For bit 1 = “1”, other than Linear PCM applications:
000: Default state
001~111: Reseved
2
R/W
0x00
CP
Copyright
0: copyright is asserted
1: no copyright is asserted
1
R/W
0x00
AUD_DATA_TYPE
Audio Data Type
0: Linear PCM Samples
1: For none-linear PCM audio such as AC3, DTS, MPEG audio
0
R/W
0x00
APP_TYPE
Application type
0: Consumer Application
1: Professional Application
Note: This bit must be fixed to “0”
5.2.4.18. AUDIO PCM CHANNEL STATUS 1
Offset: 0x05c
Register name: Aud_CH_Status1
Bits
Read
/Write
Default
/Hex
Description
31:10
/
/
reserved
9:8
R/W
0x00
CGMS-A
00: Copying is permitted without restriction
01: One generation of copies may be made
10: Condition not be used