AK8854VQ Datasheet, PDF (57/95 Pages) Asahi Kasei Microsystems – Multi-Format Digital Video Decoder

[AK8854VQ]
7.27 Internal status indicators
The AK8854 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
It is not applicable to YPbPr and RGB input.
SCLKMODE-bits: Indicates status of clock mode
SCLKMODE –bits
Clock mode
[00]
Fixed-clock
[01]
Line-locked
[10]
Frame-locked
[11]
Reserved
Notes
—
—
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
It is not applicable to YPbPr and RGB input.
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
Status of AGC operation
[0]
Sync AGC operation
[1]
Peak AGC operation
It is not applicable that sync signal is H/VSYNC or CSYNC at RGB input.
Notes
—
—
MS0973-E-01
57
2008/07