ak8823 AKM Semiconductor, Inc., ak8823 Datasheet - Page 76

• Manufacturer Part Number: ak8823
• Description: Hdtv & Ntsc/pal Multi-format Encoder Sdtv/hdtv X2 Oversampling 5ch Dacs
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Video ID 1 Register (R/W) [Address 0x2A]
Video ID 2 Register (R/W) [Address 0x2B]
Register to set VIDEO ID Data. Data can be super-imposed on CVBS / Y signal of SD Block.
Sub Address 0x2A < SD Block >
Sub Address 0x2B < SD Block >
note ) write “ 0 “s to reserved bits.
VBID1 ---- VBID14 correspond to bit 1 ---- bit 14 which are described at { VBID Data Code Assignment } diagram at item { 16-3.
Video ID }.
A 6 Bit CRC Code from bit 15 ~ bit 20 is automatically added by the AK8823.
Data is retained till it is up-dated with a new one.
Status Register (R) [Address 0x34]
Register to show Status of the AK8823
Sub Address 0x34 < SD Block >
Status Register Definition
MS0549-E-02
bit 0
bit 1
bit 2
bit 7
BIT
~
Reserved
Reserved
VBID7
bit 7
bit 7
bit 7
0
0
Register Name
Reserved
EN284
EN21
Reserved
Reserved
VBID8
bit 6
bit 6
bit 6
0
0
Encode 21 bit
Encode 284 bit
Reserved bit
Reserved
VBID1
VBID9
bit 5
bit 5
bit 5
0
0
< SD Block >
< SD Block >
Reserved
VBID10
VBID2
bit 4
bit 4
bit 4
R/W
0
0
R
R
R
Default Value
Default Value
76
Definition
to indicate up-date timing of the Closed-Caption Data
When EN21 bit is “ 1 “, the AK8823 waits for data input
coming.
This bit becomes “ 0 “ after data is written at the second byte
( 0x27 ).
to indicate up-date timing of the Closed-Caption Extended
Data
When EN284 bit is “ 1 “, the AK8823 waits for data input
coming.
This bit becomes “ 0 “ after data is written at the second byte
( 0x29 ).
do not write other than “ 0 “s.
Reserved
VBID11
VBID3
bit 3
bit 3
bit 3
0
0
Reserved
VBID12
VBID4
bit 2
bit 2
bit 2
0
0
VBID13
EN284
VBID5
bit 1
bit 1
bit 1
0
0
default Value 0x00
default Value 0x00
VBID14
VBID6
EN21
bit 0
bit 0
bit 0
2006/10
0
0
[AK8823]