PM5357 datasheet(97/432 Pages) PMC

97 / 432 page

PRODUCTION

S/UNI-622-POS

PMC-Sierra, Inc.

PM5357

S/UNI-622-POS

DATASHEET

PMC-1980911

ISSUE 5

SATURN USER NETWORK INTERFACE (622-POS)

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

persistency check) does not match the expected C2 byte (previously downloaded

by the microprocessor).

The OBR mismatch mechanism follows the table below:

Table 5: OBR Mismatch Mechanism

Expect

Receive

Action

Match

Mismatch

Match

Mismatch

Match

Mismatch

Note: XX, YY are equal to anything except 00H or 01H and are not equal to each

other.

Transmit Trace Buffer

The Trace Transmit Buffer (TTB) sources the 16-byte or 64-byte trace identifier

message. The TTB contains one page of transmit trace identifier message

memory. Identifier message data bytes are written by the microprocessor into

the message buffer and inserted in the transmit stream. When the

microprocessor is updating the transmit page buffer, the TTB may be

programmed to transmit null characters to prevent transmission of partial

messages.

10.15 SONET/SDH Section Trace Buffer (SSTB)

The SONET/SDH Section Trace Buffer (SSTB) block can handle both 64-byte

CLLI messages in SONET and 16-byte E.164 messages in SDH. This block

operates similarly to the SONET/SDH Path Trace Buffer (SPTB) except the C2

byte is also processed.

PM5357 Datasheet(PDF) 97 Page - PMC-Sierra, Inc