參數(shù)資料
型號(hào)： 8817
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： NTSC/PAL Digital Video Encoder
中文描述： NTSC / PAL數(shù)字視頻編碼器
文件頁數(shù)： 25/43頁
文件大小： 818K
代理商： 8817
ASAHI KASEI
[AK8817]
MS0413-E-00
25
2005 / Aug
( 1 ) EAV Synchronization
an EAV code which is encoded on input signal is decoded, and the device makes synchronization with its timing.
EAV / SAV codes are as follows.
Those codes succeeding 0xFF- 0x00- 0x00 which are fed as input data in 8-bit form become EAV / SAV codes.
EAV / SAV codes have following meanings, starting with MSB.
Bit Number
MSB
WORD
VALUE
7
6
5
0
0xFF
1
1
1
1
0x00
0
0
0
2
0x00
0
0
0
3
0xxx
1
F
V
here,
F = 0 : Field 1
= 1 : Field 2
V = 0 :
other than
Filed Blanking (V-Blanking)
= 1 : Filed Blanking (V-Blanking)
H = 0 : SAV
= 1 : EAV
P3, P2, P1, P0 : Protection Bit
Protection Bit and F / V / H relation is shown in the following table.
F
V
H
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
At NTSC data input case
Cb
Y
Cr
Y
Cb
Y
Cr
Y
359
718
359
719
360
720
360
721
EAV
At PAL data input case
Cb
Y
Cr
Y
Cb
Y
Cr
Y
359
718
359
719
360
720
360
721
EAV
LSB
4
1
0
0
H
3
1
0
0
P3
2
1
0
0
P2
1
1
0
0
P1
0
1
0
0
P0
P3
0
1
1
0
0
1
1
0
P2
0
1
0
1
1
0
1
0
P1
0
0
1
1
1
1
0
0
P0
0
1
1
0
1
0
0
1
Cb
428
Y
Cr
428
Y
Cb
0
Y
0
Cr
0
Y
1
856
857
……
SAV
Cb
431
Y
Cr
431
Y
Cb
0
Y
0
Cr
0
Y
1
862
863
……
SAV
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