PM5313 datasheet(98/646 Pages) PMC

98 / 646 page

PRODUCTION

PMC-Sierra, Inc.

PM5313 SPECTRA-622

DATASHEET

PMC-1981162

ISSUE 6

SONET/SDH PAYLOAD EXTRACTOR/ALIGNER FOR 622 MBIT/S

PROPRIETARY AND CONFIDENTIAL

Pin Name

Type

No.

Function

TACK

Input

B27

The transmit alarm port clock (TACK) provides

timing for transmit alarm port. TACK is nominally a

12.96 MHz, 50% duty cycle clock.

Inputs TAD and TAFP are sampled on the rising

edge of TACK.

10.9 Drop and Transmit Path AIS Control Signals

Pin Name

Type

No.

Function

DPAISCK

Input

B12

The DROP bus path alarm indication clock signal

(DPAISCK) provides timing for system DROP side

path or DS3 AIS assertion.

DPAISCK is a clock of arbitrary phase and

frequency within the limits specified in the A.C.

Timing section of this document.

Inputs DPAIS and DPAISFP are sampled on the

rising edge of DPAISCK.

DPAISFP

Input

A12

The active high DROP bus path alarm indication

frame pulse signal (DPAISFP) marks the first path

or DS3 AIS assertion request for the DROP bus

SONET/SDH streams. DPAISFP is set high to mark

the path or DS3 AIS assertion request of the first

DROP bus STS-1 (STM-0/AU3) stream. It also

marks the path AIS assertion request of the first

DROP bus STS-3c (STM-1/AU4) stream or the

single DROP bus STS-12c (STM-4-4c) stream.

DPAISFP is sampled on the rising edge of

DPAISCK.

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