PM5342 SPECTRA-155
DATA SHEET
PMC-970133
ISSUE 4
SONET/SDH PAYLOAD EXTRACTOR/ALIGNER
Register EFH: SPECTRA-155 Receive Concat Path AIS, RDI and
Enhanced RDI Control #1
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
Type
R/W
R/W
R/W
Function
PAISCONPRDI
NOPAISCONEPRDI
PAISCONPAIS
Unused
LOPCONPAIS
Unused
UNEQPRDI
UNEQEPRDI
Default
0
0
0
X
0
X
1
1
This register along with the SPECTRA-155 Receive Path AIS Control #1 register
controls the auto assertion of path AIS on the DROP bus. This register along
with the SPECTRA-155 Path REI/RDI Control #1 register controls the auto
assertion of path RDI on the transmit stream. This register along with the
SPECTRA-155 Enhanced Path RDI Control #1 register controls the auto
assertion of path RDI on the transmit stream.
When the SPECTRA-155 is configured for STS-1 (STM-0/AU3) or STS-3c
(STM-1/AU4) mode, this register controls the entire SONET/SDH stream. When
configured for STS-3 (STM-1/AU3) mode, this register controls path AIS, path
RDI and enhanced path RDI assertion on the STS-1 (STM-0/AU3) #1 only.
UNEQEPRDI:
When set high, the UNEQEPRDI bit enables enhanced path RDI assertion
when the path signal label in the receive stream indicates unequipped status.
If enabled, when the event occurs, bit 6 of the G1 byte (or the RAD output
PRDI6 bit position) is set high while bit 7 of the G1 byte (or the RAD output
PRDI7 bit position) is set low.
When UNEQEPRDI is set low, path signal label unequipped status has no
effect on enhanced path RDI.
UNEQPRDI:
When set high, the UNEQPRDI bit enables path RDI assertion when the path
signal label in the receive stream indicates unequipped status. When
UNEQPRDI is set low, the path signal label unequipped status has no effect
on path RDI.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
294
PMC [ PMC-SIERRA, INC ]
