PM5313 datasheet(72/646 Pages) PMC

72 / 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

TLRDI/

Input

C17

The active high transmit line remote defect

indication (TLRDI) signal controls the insertion of a

remote defect indication in the transmit outgoing

stream when the ring control port is disabled. When

TLRDI is set high, bits 6, 7, and 8 of the K2 byte are

set to the pattern 110. When TLRDI is set low, line

RDI may also be inserted using the LRDI bit in the

TLOP Control register, or upon detection of loss of

signal, loss of frame, or line AIS in the receive

stream, using the bits in the SPECTRA-622 Line

RDI Control register. The TLRDI input takes

precedence over the TTOH and TTOHEN inputs.

TLRDI is sampled on the rising edge of TCLK.

TRCPFP

The transmit ring control port frame position

(TRCPFP) signal identifies bit positions in the

transmit ring control port data (TRCPDAT) when the

ring control port is enabled. TRCPFP is high during

the filtered K1, K2 bit positions, the change of APS

value bit position, the protection switch byte failure

bit position, the send line AIS and the send line RDI

bit positions in the TRCPDAT stream. TRCPFP can

be connected directly to the RRCPFP output of a

mate SPECTRA-622 in ring-based add-drop

multiplexer applications.

TRCPFP is sampled on the rising edge of

TRCPCLK.

The enabling and disabling of the ring control port is

controlled by the RCPEN bit in the SPECTRA-622

Ring Control register.

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