AK8813 Datasheet, PDF (42/51 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHIKASEI
Video ID 1 Register (R/W) [Address 0x1A]
Video ID 2 Register (R/W) [Address 0x1B]
Sub Address 0x1A
bit 7
bit 6
Reserved
Reserved
0
0
bit 5
VBID1
0
bit 4
bit 3
VBID2
VBID3
Default Value
0
0
Sub Address 0x1B
bit 7
bit 6
VBID7
VBID8
0
0
bit 5
VBID9
0
bit 4
bit 3
VBID10
VBID11
Default Value
0
0
bit 2
VBID4
0
bit 2
VBID12
0
[AK8813/14]
default Value 0x00
bit 1
bit 0
VBID5
VBID6
0
0
default Value 0x00
bit 1
bit 0
VBID13
VBID14
0
0
• Please write value 0 at Reserved bit.
• Bit numbers correspond to Fig. 5 VBID code assignment.
• AK8813/14 generates CRC 6 bit data automatically.
Status Register (R/W) [Address 0x24]
Sub Address 0x24
bit 7
bit 6
Reserved
Reserved
bit 5
EN284
bit 4
EN21
bit 3
SYNC
bit 2
STS2
bit 1
STS1
bit 0
STS0
Status Register Definition
BIT
Register
Name
bit 0
STS0
~
~
Status bit
bit 2
STS2
R/W
Definition
R Shows the processing field No.
bit 3
SYNC bit S-video Y Delay bit
0 : Missing synchronization in slave mode.
R
1 : Synchronization was achieved.
bit 4
EN21
Encode21 bit
0 : Wait for the appointed video line to encode.
R
1 : Ready for the C.C. data input to the register.
bit 5
EN284
Encode 284 bit
bit 6
~
Reserved Reserved bit.
bit 7
0 : Wait for the appointed video line to encode.
R
1 : Ready for the C.C. data input to the register.
R Reserved
• 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.
acquisition.
Some time lag is inevitable for theI²C
• 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.
Rev.00
- 43 -
2004/Oct