參數(shù)資料
型號: AK8812
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): 28/36頁
文件大?。?/td> 377K
代理商: AK8812
ASAHI KASEI
[AK8811/12]
Rev.1.1 2000/01
28
Interface Mode Register (W only default A4H)
Sub Add
00H
bit 7
BLN4
bit 6
BLN3
bit 5
BLN2
bit 4
BLN1
bit 3
BLN0
bit 2
FID
bit 1
MAS
bit 0
CCIR
Symbol
BLN4 - BLN0
Value
*****
Description
Line Blanking
No.
Select VSYNC
Select FID
Slave mode
Master mode When CCIR=0,it’s
valid
CCIR656 non-decode
CCIR656 decode
default
10100
FID
0
1
0
1
default
default
MAS
CCIR
0
1
default
Video Process 1 Register (W only default 18H)
Sub Add
01H
bit 7
bit 6
CBG
bit 5
SETUP
bit 4
SCR
bit 3
VM3
bit 2
VM2
bit 1
VM1
bit 0
VM0
Reserved
Symbol
CBG
Value
Description
0
1
0
1
0
1
Video Encode
Generates color bar
No Set-up
7.5 IRE Set-up
Sub C. Phase Reset off
Standard Field Reset
525/60
01 525/60 PAL (PAL-M etc.)
10 Reserved
11
PAL
00
3.57954545 MHz
01
3.57561188 MHz (PAL-M only)
10
3.5820558 MHz
11
4.43361875 MHz
default
SETUP
default
SCR
default
default
VM3 – VM2
00
VM1-VM0
default
Register Setting of each standard is showend as following ;
VM3-VM0
NTSC-M
0000
PAL-B,D,G,H,I
1111
PAL-M
0101
PAL-60
0111
NTSC4.43
0011
When SCR is “ON”, the Subcarrier Phase is reset every 4 fields for NTSC, every 8
fields for PAL.
Even when SETUP is “ON”, there is no Set-up (Pedestal) during the blanking lines.
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