PMC-Sierra, Inc.
PRELIMINARY
PM5381 S/UNI-2488
DATASHEET
PMC-2000489
ISSUE 1
SATURN USER NETWORK INTERFACE FOR 2488 MBIT/S
Indirect Register 0800H: PRGM Monitor Timeslot Configuration Page
Bit
Type
Function
Default
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Unused
Unused
X
X
X
X
X
0
0
X
X
0
0
X
0
0
0
0
Unused
Unused
Unused
R/W
R/W
Reserved
Reserved
Unused
Bit 8
Bit 7
Unused
Bit 6
R/W
R/W
SEQ_PRBSB
B1E1_ENA
Unused
Bit 5
Bit 4
Bit 3
W
RESYNC
INV_PRBS
Reserved
MON_ENA
Bit 2
R/W
R/W
R/W
Bit 1
Bit 0
MON_ENA:
Monitor Enable register bit enables the PRBS monitors for the PRGM blocks (all 48). If
MON_ENA is set high, a PRBS sequence is generated and compare to the incoming one
inserted in the payload of the SONET/SDH frame. If MON_ENA is low, the data at the input
of the monitor is ignored.
INV_PRBS:
Sets the monitor to invert the PRBS before comparing it to the internally generated payload.
When set high, the PRBS bytes will be inverted else they will be compared unmodified.
RESYNC:
Sets the monitor to re-initialize the PRBS sequence. When set high, the monitor’s state
machines will be forced in the Out Of Sync state and automatically try to resynchronize to the
incoming stream. To force another resynchronization, the bit needs to be set low again
before it is set high..
B1E1_ENA:
When high, this bit enables the monitoring of the B1 and E1 bytes in the SONET/SDH frame.
The incoming B1 byte is compared to a programmable register. The E1 byte is compared to
Proprietary and Confidentail to PMC-Sierra Inc., and for its Customer’s Internal Use
395
PMC [ PMC-SIERRA, INC ]
