PM5348 datasheet(34/238 Pages) PMC

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PM5348 S/UNI-DUAL

DATA SHEET

PMC-950919

ISSUE 7

SATURN USER NETWORK INTERFACE

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

Pin Name

Type

No.

Function

RCA1

Output

The channel #1 receive cell available

(RCA1) signal indicates when a cell is

available in the channel #1 receive FIFO.

When RCA1 is sampled asserted, it

indicates that the channel #1 receive FIFO

has at least one cell available to be read.

When RCA1 is sampled deasserted, the

channel #1 receive FIFO contains only four

words or is empty (as selected in the RACP

Configuration register). The active polarity

of RCA1 defaults to active high and can be

programmed in the S/UNI-DUAL

Configuration register. RCA1 is updated on

the rising edge of RFCLK. See note 12.

RCA2

Output

The channel #2 receive cell available

(RCA2) signal indicates when a cell is

available in the channel #2 receive FIFO.

When RCA2 is sampled asserted, it

indicates that the channel #2 receive FIFO

has at least one cell available to be read.

When RCA2 is sampled deasserted, the

channel #2 receive FIFO contains only four

words or is empty (as selected in the RACP

Configuration register). The active polarity

of RCA2 defaults to active high and can be

programmed in the S/UNI-DUAL

Configuration register. RCA2 is updated on

the rising edge of RFCLK. See note 12.

PM5348 Datasheet(PDF) 34 Page - PMC-Sierra, Inc

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