PM5347 datasheet(53/302 Pages) PMC

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PM5347 S/UNI-PLUS

DATA SHEET

PMC-941033

ISSUE 6

SATURN USER NETWORK INTERFACE PLUS

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

Pin Name

Type

No.

Function

RSTB

Input

The active low reset (RSTB) signal provides an

asynchronous S/UNI-PLUS reset. RSTB is a

Schmitt triggered input with an integral pull up

resistor.

ALE

Input

The address latch enable (ALE) is active high and

latches the address bus A[7:0] when low. When

ALE is high, the internal address latches are

transparent. It allows the S/UNI-PLUS to interface

to a multiplexed address/data bus. ALE has an

integral pull up resistor.

INTB

Output

The active low interrupt (INTB) signal goes low

when a S/UNI-PLUS interrupt source is active,

and that source is unmasked. The S/UNI-PLUS

may be enabled to report many alarms or events

via interrupts. Examples are loss of signal (LOS),

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

indication (LRDI), loss of pointer (LOP), path AIS,

path RDI, and many others. INTB returns high

when the interrupt is acknowledged via an

appropriate register access. INTB is an open

drain output.

TCK

Input

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-PLUS via the IEEE P1149.1 test

access port. TDI is sampled on the rising edge of

TCK. TDI has an integral pull up resistor.

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