AK8853XQ Datasheet, PDF (36/70 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

[AK8853XQ/ VN]
7.26 Internal status indicators
The AK8853 shows the internal status, with the following bit allocation.
NOSIG-bit: Indicates presence or absence of signal
NOSIG –bit
Status of signal input
[0]
Signal detected
[1]
No signal detected
Notes
—
—
VLOCK-bit: Indicates status of VLOCK
VLOCK-bit
Status of synchronization
[0]
Synchronized
[1]
Non-synchronized
Notes
—
—
COLKILON: Indicates status of color killer
COLKILON –bit
Status of color killer
[0]
Operation
[1]
Not-operation
Notes
—
—
SCLKMODE-bits: Indicates status of clock mode
SCLKMODE –bits
Clock mode
[00]
Fixed-clock
[01]
Line-locked
[10]
Frame-locked
[11]
Reserved
Notes
—
—
—
—
PKWHITE: Indicates status of luminance decode result after passage through AGC block
PKWHITE –bit
Status of luminance decode result
Notes
[0]
Normal
—
[1]
Overflow
—
OVCOL: Indicates status of color decode result after passage through ACC block
OVCOL –bit
Status of color decode result
[0]
Normal
[1]
Overflow
Notes
—
—
Status 2-Ragister: Indicates closed caption, extended data, VBID, and WSS signal status, with decoding
field status shown in REALFLD-bit and adaptive AGC status in AGCSTS-bit.
REALFLD -bit
[0]
[1]
Decoding field
Even
Odd
Notes
—
—
AGCSTS -bit
[0]
[1]
Status of AGC operation
Sync AGC operation
Peak AGC operation
Notes
—
—
Rev-E-00
36
2008/01