PM7382-PI datasheet(42/330 Pages) PMC

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PM7382 FREEDM-32P256

DATA SHEET

PMC-2010333

ISSUE 3

FRAME ENGINE AND DATA LINK MANAGER 32P256

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

Pin Name

Type

No.

Function

TDO

Tristate

Output

U22

The test data output signal (TDO) carries test

data out of the FREEDM-32P256 via the IEEE

P1149.1 test access port. TDO is updated on

the falling edge of TCK. TDO is a tristate output

which is inactive except when scanning of data

is in progress.

TRSTB

Input

T21

The active low test reset signal (TRSTB)

provides an asynchronous FREEDM-32P256

test access port reset via the IEEE P1149.1 test

access port. TRSTB is an asynchronous input

with an integral pull up resistor.

Note that when TRSTB is not being used, it

must be connected to the RSTB input.

NC1-50

Open

These pins must be left unconnected.

Table 4 – Production Test Interface Signals (0 - Multiplexed)

Pin Name

Type

No.

Function

TA[0]

TA[1]

TA[2]

TA[3]

TA[4]

TA[5]

TA[6]

TA[7]

TA[8]

TA[9]

TA[10]

TA[11]

Input

G23

F23

E23

D22

E20

C23

A22

D20

B21

D19

B20

A19

The test mode address bus (TA[11:0]) selects

specific registers during production test

(PMCTEST set high) read and write accesses.

TA[11:0] replace RD[21:10] when PMCTEST is

set high.

TA[12]

/TRS

Input

A16

The test register select signal (TA[12]/TRS)

selects between normal and test mode register

accesses during production test (PMCTEST set

high). TRS is set high to select test registers

and is set low to select normal registers.

TA[12]/TRS replaces RD[24] when PMCTEST is

set high.

PM7382-PI Datasheet(PDF) 42 Page - PMC-Sierra, Inc

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