PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
Register 1FFH, 2FFH, 3FFH: RTOP Status
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
Reserved
Reserved
Unused
Unused
Unused
Unused
BLKREI
BUSY
0
0
X
X
X
X
0
R/W
R
X
This register configures and reports the status of the various internal operations
inside RTOP.
BUSY:
The BUSY bit indicates the status of the transfer of BIP and REI counts from
the counters to the holding registers. BUSY is set high when the STP Input
Signal Activity Monitor #1, Accumulation Trigger register is being written.
BUSY is set low when all the counters values have been transferred to
holding registers. The elapsed time shall be less than 10 µs.
BLKREI:
The block REI accumulation control bit selects between counting of REIs in
the incoming TU3 stream on a block or bit basis. When BLKREI is set high,
REI count codes in the range of 1 to 8 are accumulated on a block basis as a
single REI event. All other codes are counted zero events. When BLKREI is
set low, REI count codes in the range of 1 to 8 are accumulated on a bit basis
as a up to 8 REI events. All other codes are counted zero events.
Reserved:
The Reserved bits must be written with a logic 0 for proper operation of the
TUPP+622.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
297
PMC [ PMC-SIERRA, INC ]
