PM5356 datasheet(68/307 Pages) PMC

68 / 307 page

RELEASED

S/UNI-622-MAX

PMC-Sierra, Inc.

PM5356

S/UNI-622-MAX

DATASHEET

PMC-1980589

ISSUE 6

SATURN USER NETWORK INTERFACE (622-MAX)

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

The POUT[7:0] outputs are provided by the Scrambler block and are updated

with timing aligned to TCLK. It also provides the FPOUT signal.

10.9 Transmit Line Overhead Processor (TLOP)

The Transmit Line Overhead Processor (TLOP) provides line level alarm signal

insertion, and line BIP-96 insertion (B2). In addition, it inserts the line data

communication provided serially on input TLD.

APS Insert

The APS Insert Block inserts the two automatic protection switch (APS) channel

bytes in the Line Overhead (K1 and K2) into the transmit stream when enabled

by an internal register.

Line BIP Calculate

The Line BIP Calculate Block calculates the line BIP-96 error detection code (B2)

based on the line overhead and synchronous payload envelope of the transmit

stream. The line BIP-96 code is a bit interleaved parity calculation using even

parity. Details are provided in the references. The calculated BIP-96 code is

inserted into the B2 byte positions of the following frame. BIP-96 errors may be

continuously inserted under register control for diagnostic purposes.

Line RDI Insert

The Line RDI Insert Block controls the insertion of line remote defect indication.

Line RDI insertion is enabled through register control. Line RDI is inserted by

transmitting the code 110 (binary) in bit positions 6, 7, and 8 of the K2 byte

contained in the transmit stream.

Line FEBE Insert

The Line FEBE Insert Block accumulates line BIP-96 errors (B2) detected by the

Receive Line Overhead Processor and encodes far end block error indications in

the transmit Z2 byte.

10.10 Transmit Path Overhead Processor (TPOP)

The Transmit Path Overhead Processor (TPOP) provides transport frame

alignment generation, pointer generation (H1, H2), path overhead insertion and

the insertion of path level alarm signals.

PM5356 Datasheet(PDF) 68 Page - PMC-Sierra, Inc