參數(shù)資料
型號: AK8811
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): 32/36頁
文件大?。?/td> 377K
代理商: AK8811
ASAHI KASEI
[AK8811/12]
Rev.1.1 2000/01
32
Followings are read only register
STATUS REGISTER (R only)
Sub Add
24H
bit7
bit6
bit5
EN284
bit4
EN21
bit3
SYNC
bit2
STS2
bit1
STS1
bit0
STS 0
Reserved Reserved
Symbol
EN284
Value
0
1
0
1
0
1
***
Description
Wait for the appointed video line to encode.
Ready for the C.C. data input to the register.
Wait for the appointed video line to encode.
Ready for the C.C. data input to the register.
Missing synchronization in slave mode.
Synchronization was achieved.
Shows the processing field No.
EN21
SYNC
STS2 - STS 0
Status Register becomes effective when SYNC bit turns to “1”. When in master mode
operation, this bit is ”1”.
STS2-STS2 holds the field number of processing. Some time lag is inevitable for the I
2
C
acquisition.
Closed caption data should be renewed after firm that the EN* flag is “1”. EN* flag bit is
cleared after the second byte( Sub address 17H,19H) was accessed.
Reserved-bit is always value 0.
Device ID
(R only default 21H)
Sub Add
25H
bit7
0
bit6
0
bit5
0
bit4
1
Bit3
0
bit2
0
bit1
0
bit0
1
Represents device ID. AK 8811 is assigned 11H.
Sub Add
25H
bit7
0
bit6
0
bit5
0
bit4
1
Bit3
0
bit2
0
bit1
1
bit0
0
Represents device ID. AK 8811/12 is assigned 12H.
Device REV
(R only default 01H)
Sub Add
26H
bit7
0
bit6
0
bit5
0
bit4
0
Bit3
0
bit2
0
bit1
0
bit0
1
Represents device revision. Initial is 01H.
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