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Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit name Reserved Reserved Reserved Reserved Reserved Reserved Reserved J1_OOF
R/W —— ——— ——R
Value 00 000 001
after
reset
ADDR=0x133: Receive J1 OOF
Bits 7-1: Reserved
Bit 0: J1_OOF: The J1 monitor framer searches for 15 consecutive J1 bytes that have a zero in their
MSB, followed by a J1 byte with a one in its MSB. When J1_OOF = 0, it indicates this pattern is
found, the framer goes into frame. When J1_OOF = 1, it indicates this pattern match is lost (three
consecutive J1 bytes with MSB errors).
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Bit name RX_J1[0]_[7:0]
•
•
•
RX_J1[63]_[7:0]
R/W R
Value 0 0 00 0 000
after
reset
ADDR=0x134 –0x173: Receive J1 Bytes
Bits 7-0: RX_J1[0:63]_[7:0]
In SONET mode, the RX_J1[63:0]_[7:0] registers hold the last captured path trace frame.
In SDH mode, the last accepted path trace frame is held in the RX_J1[15:0]_[7:0].