PM5345 datasheet(49/196 Pages) PMC

49 / 196 page

PM5345 S/UNI-155

DATA SHEET

PMC-930305

ISSUE 4

SATURN USER NETWORK INTERFACE

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

Pin Name

Type

No.

Function

INTB

Output

The active low interrupt (INTB) signal goes low

when a S/UNI interrupt source is active, and

that source is unmasked. The S/UNI may be

enabled to report many alarms or events via

interrupts. Examples are loss of signal (LOS),

loss of frame (LOF), line AIS, line far end

receive failure (FERF), loss of pointer (LOP),

path AIS, path yellow, and many others. INTB

returns high when the interrupt is

acknowledged via an appropriate register

access. INTB is an open drain output.

TCK

Input

100

The test clock (TCK) signal provides timing for

test operations that can be carried out using

the IEEE P1149.1 test access port.

TMS

Input

The test mode select (TMS) signal controls the

test operations that can be 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

The test data input (TDI) signal carries test

data into the S/UNI 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 via the IEEE P1149.1

test access port. TDO is updated on the falling

edge of TCK. TDO is a tri-state output which is

inactive except when scanning of data is in

progress.

TRSTB

Input

The active low test reset (TRSTB) signal

provides an asynchronous S/UNI test access

port reset via the IEEE P1149.1 test access

port. If the JTAG port is not used, TRSTB

should be tied to RSTB for proper operation.

TRSTB has an integral pull up resistor.

PM5345 Datasheet(PDF) 49 Page - PMC-Sierra, Inc

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