XRT94L33_2 Datasheet, PDF (172/810 Pages) Exar Corporation – 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER - SDH REGISTERS

XRT94L33
333---CCCHHHAAANNNNNNEEELLL DDDSSS333///EEE333///SSSTTTSSS---111 TTTOOO SSSTTTSSS---333///SSSTTTMMM---111 MMMAAAPPPPPPEEERRR ––– SSSDDDHHH RRREEEGGGIIISSSTTTEEERRRSSS
Rev222...000...000
Table 104: Receive STM-1 Section – Force SEF Condition Register (Address Location= 0x114B)
BIT 7
R/O
0
BIT 6
R/O
0
BIT 5
R/O
0
BIT 4
Unused
R/O
0
BIT 3
R/O
0
BIT 2
R/O
0
BIT 1
R/O
0
BIT 0
SEF FORCE
R/W
0
BIT NUMBER
7–1
0
NAME
Unused
SEF FORCE
TYPE
R/O
DESCRIPTION
R/W SEF Force:
This READ/WRITE bit-field permits the user to force the Receive STM-1
SOH Processor block to declare the SEF defect condition. The Receive
STM-1 SOH Processor block will then attempt to reacquire framing.
Writing a “1” into this bit-field configures the Receive STM-1 SOH
Processor block to declare the SEF defect condition. The Receive STM-1
SOH Processor block will automatically set this bit-field to “0” once it has
reacquired framing (e.g., has detected two consecutive STM-1 frames with
the correct A1 and A2 bytes).
172