Allwinner A20 - Page 357

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 357 / 812
CCIR656 4 channel Timing
CCIR656 Header Code
CCIR656 Header Data Bit Definition
Data Bit
First Word(0xFF)
Second
Word(0x00)
Third
Word(0x00)
Fourth Word
CS D[9] (MSB)
1
0
0
1
CS D[8]
1
0
0
F
CS D[7]
1
0
0
V
CS D[6]
1
0
0
H
CS D[5]
1
0
0
P3
CS D[4]
1
0
0
P2
CS D[3]
1
0
0
P1
CS D[2]
1
0
0
P0
CS D[1]
x
x
x
x
CS D[0]
x
x
x
x
For compatibility with an 8-bit interface, CS D[1] and CS D[0] are not defined.
Decode
F
V
H
P3
P2
P1
P0
Field 1 start of active video (SAV)
0
0
0
0
0
0
0
Field 1 end of active video (EAV)
0
0
1
1
1
0
1
Field 1 SAV (digital blanking)
0
1
0
1
0
1
1