CXD2588Q/R
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 ±4F jitter margin.
Monitor Pin Output Combinations
Command bit
MTSL1 MTSL0
0
0
0
1
1
0
XUGF
MNT1
RFCK
Output data
XPCK
MNT0
XPCK
GFS
MNT3
XROF
C2PO
C2PO
GTOP
–8–