CXD3018Q/R
Signal
Description
PER0 to
PER7
RF jitter amount (used to adjust the focus bias). 8-bit binary data in PER0 = LSB, PER7 = MSB.
FOK
GFS
Focus OK
High when the frame sync and the insertion protection timing match.
GFS is sampled at 460Hz; when GFS is high, a high signal is output. If GFS is low eight
consecutive samples, a low signal is output.
LOCK
EMPH
ALOCK
High when the playback disc has emphasis.
GFS is sampled at 460Hz; when GFS is high eight consecutive samples, a high signal is
output. If GFS is low eight consecutive samples, a low signal is output.
Used in CAV-W mode. Results of measuring the disc rotational velocity. (See Timing Chart 2-3.)
VF0 = LSB, VF7 = MSB.
VF0 to VF7
SPOA, B SPOA and SPOB pin inputs.
WFCK
SCOR
GTOP
RFCK
Write frame clock output.
High when either subcode sync S0 or S1 is detected.
High when the sync protection window is open.
Read frame clock output.
XRAOF
Low when the built-in 16K RAM exceeds the ±4 frame jitter margin.
L0 to L7, Peak meter register output. L0 to L7 are the left-channel and R0 to R7 are the right-channel
R0 to R7 peak data. L0 and R0 are LSB.
C1F1
C1F2
C1 correction status
No Error
C2F1
C2F2
C2 correction status
No Error
0
1
1
0
0
1
0
1
1
0
0
1
Single Error Correction
Irretrievable Error
Single Error Correction
Irretrievable Error
Processing
Command bit
CPUSR = 1
CPUSR = 0
XLON pin is high.
XLON pin is low.
– 46 –
ETC [ ETC ]
