PM5316 datasheet(39/491 Pages) PMC

39 / 491 page

SONET/SDH Payload Extractor/Aligner (SPECTRA-4x155)

Production

Proprietary and Confidential to PMC-Sierra, Inc. and for its customers’ internal use

Document ID: PMC-1990822, Issue 4

Pin Name

Type

No.

Function

LRDI1/

LRDI2/

LRDI3/

LRDI4/

/RRCPCLK1

/RRCPCLK2

/RRCPCLK3

/RRCPCLK4

Output

A12

D12

C11

B10

A12

D12

C11

B10

The RDI (LRDI1-4) signal is active when the ring control port is

disabled. LRDI1-4 is set high when line RDI is detected in the

corresponding incoming stream. LRDI is declared when the 110

binary pattern is detected in bits 6, 7, and 8 of the K2 byte for three

or five consecutive frames. LRDI is removed when any pattern other

than 110 is detected in bits 6, 7, and 8 of the K2 byte for three or five

consecutive frames.

The LRDIDET bit in the RLOP Control and Status register of the

corresponding channel controls the selection of three or five

consecutive frames.

LRDI1-4 is updated on the rising edge of RCLK1-4.

The Receive ring control port clock (RRCPCLK1-4) signal provides

timing for the receive ring control port when the ring control port is

enabled. RRCPCLK1-4 is nominally a 3.24 MHz clock and can be

connected directly to the TRCPCLK1-4 inputs of a mate SPECTRA-

4x155 in ring-based Add-Drop multiplexer applications.

The RCPEN bit in the Ring Control register of the corresponding

channel controls the enabling and disabling of the ring control port.

The RRCPFP1-4 and RRCPDAT1-4 signals are updated on the

falling edge of RRCPCLK1-4.

LAIS1/

LAIS2/

LAIS3/

LAIS4/

/RRCPDAT1

/RRCPDAT2

/RRCPDAT3

/RRCPDAT4

Output

B12

E12

D11

C10

B12

E12

D11

C10

The line alarm indication (LAIS1-4) signal is active when the ring

control port is disabled. LAIS1-4 is set high when line AIS is detected

in the corresponding incoming stream. Line AIS is declared when the

111 binary pattern is detected in bits 6, 7, and 8 of the K2 byte for

three or five consecutive frames. Line AIS is removed when any

pattern other than 111 is detected in bits 6, 7, and 8 of the K2 byte

for three or five consecutive frames.

The LAISDET bit in the RLOP Control and Status register of the

corresponding channel controls the selection of three or five

consecutive frames.

The LAIS1-4 outputs are updated on the rising edge of RCLK1-4.

The Receive ring control port data (RRCPDAT1-4) signal contains

the receive ring control port data stream when the ring control port is

enabled. The receive ring control port data consists of the filtered K1,

K2 byte values, the change of APS value bit position, the protection

switch byte failure status bit position, the send line AIS and send line

RDI bit positions, and the line REI bit positions. RRCPDAT1-4 can

be connected directly to the TRCPDAT1-4 inputs of a mate

SPECTRA-4x155 in ring-based Add-Drop multiplexer applications.

The RCPEN bit in the Ring Control register of the corresponding

channel controls the enabling and disabling of the ring control port.

The RRCPDAT1-4 signal is updated on the falling edge of

RRCPCLK1-4.

PM5316 Datasheet(PDF) 39 Page - PMC-Sierra, Inc

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