PM5356 datasheet(33/307 Pages) PMC

33 / 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

Pin Name

Type

No.

Function

TFPI

Input

A21

The active high framing position (TFPI) signal is an 8

kHz timing marker for the transmitter. TFPI is used to

align the SONET/SDH transport frame generated by

the S/UNI-622-MAX device to a system reference.

TFPI should be brought high for a single TCLK period

every 9720 TCLK cycles or a multiple thereof. TFPI

must be tied low if such synchronization is not

required.

TFPI is sampled on the rising edge of TCLK.

APS[0]

APS[1]

APS[2]

APS[3]

APS[4]

I/O

A19

C18

B18

D17

C17

The APS Port bus (APS[4:0]) is a bi-directional

control bus that can be used to implement a 1+1 APS

system. When the APSPOE register bit is set low, the

APS[4:0] bus is an input. Data on this bus is used by

TPOP to generate the path RDI and path FEBE.

When the APSOE register bit is set high, the APS[4:0]

bus is an output with data generated by RPOP.

APS[0]

FEBE Clock (576 kHz)

APS[1]

FEBE Data

APS[2]

RDI[0] (G1 bit 5)

APS[3]

RDI[1] (G1 bit 6)

APS[4]

RDI[2] (G1 bit 7)

See the Operation section for more discussion of 1+1

APS.

PM5356 Datasheet(PDF) 33 Page - PMC-Sierra, Inc

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