CXD3018Q/R
Pin No.
Output
values
I/O
Symbol
Description
CXD
CXD
3018R
3018Q
98
100 RMUT
O
O
1, 0
1, 0
R ch zero detection flag.
L ch zero detection flag.
99
1
2
LMUT
NC
100
Notes) • PCMD is a MSB first, two's complement output.
• GTOP is used to monitor the frame sync protection status. (High: sync protection window released.)
• XUGF is the frame sync obtained from the EFM signal, and is negative pulse. It is the signal before
sync protection.
• XPCK is the inverse of the EFM PLL clock. The PLL is designed so that the falling edge and the EFM
signal transition point coincide.
• The GFS signal goes high when the frame sync and the insertion timing match.
• RFCK is derived from the crystal accuracy, and has a cycle of 136µs.
• C2PO represents the data error status.
• XROF is generated when the 16K RAM exceeds the ±4 frame jitter margin.
Monitor Pin Output Combinations
Command bit
Output data
MTSL1 MTSL0
GFS
C2PO
C2PO
GTOP
0
0
1
0
1
0
XPCK
MNT0
XPCK
XUGF
MNT1
RFCK
MNT3
XROF
– 8 –
ETC [ ETC ]
