
PM5317 SPECTRA-9953 Telecom Standard Product Data Sheet
Release
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2000741, Issue 5
110
BYTE
HIGHEST
Priority
LOWEST
Priority
1)
1)
M1
LREI[7:0]
(LREIEN=1)
TTOH
(TTOHEN=
1)
M1 pass
through
E2
E2V
(E2REGEN=
1)
TTOH
(TTOHEN=
1)
E2 pass
through
National
NATIONALV
(NATIONAL
EN=1)
TTOH
(TTOHEN=
1)
National pass
through
Unused
UNUSEDV
(UNUSEDEN
=1)
TTOH
(TTOHEN=
1)
Unused pass
through
PLD
PLD
pass through
Table 11 Definition of Z0/National Growth Bytes for Row #1
TRMP Mode
Type
Z0DEF = 1
Z0DEF = 0
Z0
None
From STS-1/STM-0 #2 to #3
STS-3/STM-1
National
From STS-1/STM-0 #2 to #3
None
Z0
From STS-1/STM-0 #2 to #4
From STS-1/STM-0 #2 to #12
STS-48/STM-4
master mode
National
From STS-1/STM-0 #5 to #12
None
Z0
From STS-1/STM-0 #1 to #4
From STS-1/STM-0 #1 to #12
STS-192/STM-64
slave mode
National
From STS-1/STM-0 #5 to #12
None
The H1, H2, B1 and B2 bytes input from the TTOH port are inserted or are used as a mask to
toggle bits in the corresponding H1, H2, B1 and B2 bytes depending on the HMASK B1MASK
and B2MASK register bits. When the HMASK, B1MASK or B2MASK register bit is set low
and TTOHEN is sampled high on the MSB of the serial H1, H2, B1 or B2 byte, the serial byte is
inserted in place of the corresponding byte. When the HMASK, B1MASK or B2MASK
register bit is set high and TTOHEN is sampled high on the MSB of the serial H1, H2, B1 or B2
byte, the serial byte is XOR’d with the corresponding path payload pointer (already in the data
stream) or the calculated BIP-8 byte before being inserted.
The TRMP inserts the APS bytes detected by the RRMP during the last receive frame. The APS
bytes are returned to the far end by the TRMP during the next transmit frame. Because the
RRMP and the TRMP are in two different clock domains, two, one, or no APS bytes can be
sampled per transmit frame. The last received APS bytes are transmitted.
The TRMP inserts the line remote defect indication (RDI-L) into the data stream. When line
RDI is inserted, the 110 pattern is inserted in bits 6, 7 and 8 of the K2 byte of STS-1 (STM-0)
#1. Line RDI insertion has priority over TOH byte insertion. The TRMP also inserts the line
alarm indication signal (AIS-L) into the data stream. When line AIS must be inserted, all ones
are inserted in the line overhead and in the payload (all bytes of the frame except the section
overhead bytes). Line AIS insertion has priority over line RDI insertion and TOH byte
insertion.