參數(shù)資料
型號(hào): 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): 31/36頁
文件大?。?/td> 377K
代理商: AK8812
ASAHI KASEI
[AK8811/12]
Rev.1.1 2000/01
31
Closed Caption Register (W only default 00H)
Sub Add
16H
17H
18H
19H
bit 7
CC1[7]
CC2[7]
CC3[7]
CC4[7]
bit 6
CC1[6]
CC2[6]
CC3[6]
CC4[6]
bit 5
CC1[5]
CC2[5]
CC3[5]
CC4[5]
bit 4
CC1[4]
CC2[4]
CC3[4]
CC4[4]
bit 3
CC1[3]
CC2[3]
CC3[3]
CC4[3]
bit 2
CC1[2]
CC2[2]
CC3[2]
CC4[2]
bit 1
CC1[1]
CC2[1]
CC3[1]
CC4[1]
bit 0
CC1[0]
CC2[0]
CC3[0]
CC4[0]
Symbol
Description
CC1[7] – CC1[0]
CC2[7] – CC2[0]
CC3[7] – CC3[0]
CC4[7] – CC4[0]
Line 21 –1
Line 21 –2
Line 284 -1
Line 284 -2
Closed Caption
Extended Data
When the 2nd byte of Closed Caption Data and Extended Data is written in,
AK 8811/12 recognizes the renewed data and encodes it in the video line. When the
data is not renewed AK 8811/12 outputs NULL code.
Video ID Data Register (W only default 00H)
Sub Add
1AH
1BH
bit 7
bit 6
bit 5
bit 1
bit 9
bit 4
bit 2
bit 10
bit 3
bit 3
bit 11
bit 2
bit 4
bit 12
bit 1
bit 5
bit 13
bit 0
bit 6
bit 14
Reserved Reserved
bit 7
bit 8
Please write value 0 at Reserved bit.
Bit numbers correspond to Fig. 5 VBID code assignment.
AK 8811/12 generates CRC 6 bit data automatically.
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