PM4328 datasheet(60/250 Pages) PMC

60 / 250 page

STANDARD PRODUCT

PM4328 TECT3

DATASHEET

PMC-2011596

ISSUE 1

HIGH DENSITY T1/E1 FRAMER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

Pin Name

Type

No.

Function

A collision is detected when either of SBIDET[1:0]

signals are active concurrently with this device driving

SBIACT. When collisions occur the SBI drivers are

disabled and an interrupt is generated to signal the

collision.

These signals are sampled on the rising edge of

SREFCLK.

SBIDET[1] is shared with serial interface signal ED[7].

Microprocessor Interface

INTB

Output

A16 Active low Open-Drain Interrupt (INTB). This signal

goes low when an unmasked interrupt event is

detected on any of the internal interrupt sources. Note

that INTB will remain low until all active, unmasked

interrupt sources are acknowledged at their source.

CSB

Input

D16 Active Low Chip Select (CSB). This signal is low

during TECT3 register accesses. CSB has an integral

pull up resistor.

RDB

Input

B16 Active Low Read Enable (RDB). This signal is low

during TECT3 register read accesses. The TECT3

drives the D[7:0] bus with the contents of the

addressed register while RDB and CSB are low.

WRB

Input

C15 Active Low Write Strobe (WRB). This signal is low

during a TECT3 register write access. The D[7:0] bus

contents are clocked into the addressed register on the

rising WRB edge while CSB is low.

PM4328 Datasheet(PDF) 60 Page - PMC-Sierra, Inc

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