Allwinner A20 - Page 766

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 766 / 812
6.13.4.33. TSF CHANNEL BUFFER WRITE POINTER REGISTER
Offset: TSF+0x58
Register Name: TSF_CBWPR
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:21
/
/
/
20:0
R/W
0
BufWrPtr
Data Buffer Write Pointer (in Bytes)
This value is changed by hardware, when data is filled into
buffer, this pointer is increased.
And this pointer can be set by software, but it should not be
changed by software during the corresponding channel is
enable.
6.13.4.34. TSF CHANNEL BUFFER READ POINTER REGISTER
Offset: TSF+0x5c
Register Name: TSF_CBRPR
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:21
/
/
/
20:0
R/W
0
BufRdPtr
Data Buffer Read Pointer (in Bytes)
This pointer should be changed by software after the data of
buffer is read.
6.13.4.35. TSD CONTROL REGISTER
Offset: TSD+0x00
Register Name: TSD_CTLR
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:2
/
/
1:0
R/W
0x0
DescArith
Descramble Arithmetic
00: DVB CSA V1.1
Others: Reserved