PM8313-RI View Datasheet(PDF) - PMC-Sierra

Part Name

Description

Manufacturer

PM8313-RI

M13 MULTIPLEXER

PMC-Sierra 

DATA SHEET

PMC-920702

ISSUE 5

PM8313 D3MX

M13 MULTIPLEXER

Pin Name

TNEG/

TMFP

INTB

CSB

RDB

Type Pin No. Function

Output

Output

5 The transmit negative pulse (TNEG) signal

represents the negative pulses transmitted on

the B3ZS-encoded line when configured for

dual rail operation. TNEG is updated on the

falling edge of TCLK by default but may be

enabled to be updated on the rising edge of

TCLK.

The transmit multiframe pulse (TMFP) signal

marks the transmit M-frame alignment when

configured for single rail operation. The TMFP

output is high during the first bit (X1) of the

DS3 multiframe presented on TDAT. TMFP is

updated on the falling edge of TCLK by default

but may be enabled to be updated on the rising

edge of TCLK.

33 The active low interrupt (INTB) signal goes low

when one of the DS3 FRMR, RBOC, DS2

FRMR, MX12, MX23 or PMON TSBs generates

an interrupt, provided that the interrupt source

in question is not masked. INTB goes high

when the Interrupt Enable/Status Register is

read in the corresponding TSB. Note that INTB

will remain low until all active, unmasked

interrupt sources are acknowledged. The INTB

signal is an open drain output.

Input

Input

45 The active low chip select (CSB) signal is low

during D3MX register accesses. CSB must go

high at least once after a powerup to clear

internal test modes. If CSB is not used, then it

should be tied to an inverted version of RSTB,

in which case RDB and WRB determine

register accesses

57 The active low read enable (RDB) signal is low

during D3MX register read accesses. The

D3MX drives the D7-D0 bus with the contents

of the addressed register while RDB and CSB

are low.

30

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