PM5380-BI PMC-Sierra, Inc., PM5380-BI Datasheet - Page 396
PM5380-BI
Manufacturer Part Number
PM5380-BI
Description
Network Interface, SATURN User Network Interface (8x155) Telecom Standard Product
Manufacturer
PMC-Sierra, Inc.
Datasheet
1.PM5380-BI.pdf
(440 pages)
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Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC- 2010299, Issue 2
13.12 APS Support
The S/UNI-8x155 has the ability to exchange transmit path data with another S/UNI-8x155 in
order to implement APS interface. The APS support logic may also be used to reassign at the
path level the channel numbers in a single S/UNI-8x155. The diagram in Figure 28 shows the
APS support logic for each channel. The diagnostic path loop back DPLE is shown to illustrate
that path loop back includes all path functions including the APS stream if used.
In the transmit direction, the transmit path may be configured using the TXEN register to use
the normal transmit path from TPOP or the APS path stream. The APS path stream is
configured using the TSEL[4:0] registers to select from the other TPOP path sources in the
S/UNI-8x155 (TPTH[7:0]) or from the receive APS channels (RXA[7:0]). The channel adds
section and line overhead to the transmit path data stream using its TSOP and TLOP units.
Thus, each channel has unique K1/K2 byte control.
Figure 28 Channel APS Structure
In the receive direction, channel processes section and line overhead in the receive path stream
using its RSOP and RLOP units. Thus, each channel has unique K1/K2 byte monitoring. The
receive path may be configured using the RXEN register to use the normal receive path from
RLOP or the APS path stream. The APS path stream is configured using the RSEL[4:0]
registers to select from other receive RLOP path sources in the S/UNI-8x155 (RPTH[7:0]) or
from the receive APS channels (RXA[7:0]). The channel path processors, RPOP and TPOP, are
connected for AUTOPRDI and FEBE functionality.
RPTH[7:0]
RXA[7:0]
RPTH[x]
RSEL[4:0]
RSOP
RLOP
RPOP
RXCP
DPLE
RXEN
S/UNI®-8x155 ASSP Telecom Standard Product Data Sheet
TXEN
TSOP
TPOP
TLOP
TXCP
PROCM
CHFRST
Channel
FIFO
STAL
TSEL[4:0]
TPTH[x]
TPTH[7:0]
RXA[7:0]
TXA[x]
Released
396
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