PM5352 datasheet(40/77 Pages) PMC

40 / 77 page

PM5352 S/UNI STAR

DATA SHEET

PMC-1990421

ISSUE 2

SATURN USER NETWORK INTERFACE 155 (STAR)

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

Pin Name

Type

No.

Function

INTB

Output

Open-

drain

C10

The active-low interrupt (INTB) signal goes low

when a S/UNI-STAR interrupt source is active and

that source is unmasked. The S/UNI-STAR may be

enabled to report many alarms or events via

interrupts.

Examples of interrupt sources are loss of signal

(LOS), loss of frame (LOF), line AIS, line remote

defect indication (LRDI) detect, loss of pointer

(LOP), path AIS, path remote defect indication

detect and others.

INTB is tristated when the interrupt is

acknowledged via an appropriate register access.

INTB is an open drain output.

6.5

JTAG Test Access Port (TAP) Signals

Pin Name

Type

No.

Function

TCK

Input

The test clock (TCK) signal provides timing for test

operations that are carried out using the IEEE

P1149.1 test access port.

TMS

Input

pull-up

The test mode select (TMS) signal controls the test

operations that are carried out using the IEEE

P1149.1 test access port. TMS is sampled on the

rising edge of TCK. TMS has an integral pull-up

resistor.

TDI

Input

pull-up

D10

The test data input (TDI) signal carries test data into

the S/UNI-STAR via the IEEE P1149.1 test access

port. TDI is sampled on the rising edge of TCK.

TDI has an integral pull-up resistor.

TDO

Tristate

The test data output (TDO) signal carries test data

out of the S/UNI-STAR 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.

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