AK8811 Datasheet, PDF (31/36 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
[AK8811/12]
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
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
Description
Closed Caption
Extended Data
• When the 2nd byte of Closed Caption Data and Extended Data is written in,
AK8811/12 recognizes the renewed data and encodes it in the video line. When the
data is not renewed AK8811/12 outputs NULL code.
Video ID Data Register (W only default 00H)
Sub Add bit 7
bit 6
1AH ^{Reserved Reserved}
1BH bit 7 bit 8
bit 5
bit 1
bit 9
bit 4
bit 2
bit 10
bit 3
bit 3
bit 11
bit 2
bit 4
bit 12
• Please write value 0 at Reserved bit.
• Bit numbers correspond to Fig. 5 VBID code assignment.
• AK8811/12 generates CRC 6 bit data automatically.
bit 1
bit 5
bit 13
bit 0
bit 6
bit 14
Rev.1.1
31
2000/01