PM6344 datasheet(130/256 Pages) PMC

130 / 256 page

STANDARD PRODUCT

PMC-Sierra, Inc.

PM6344 EQUAD

PMC-951013

ISSUE 5

QUADRUPLE E1 FRAMER

117

Bit

Type

Function

Default

Bit 7

RRA

Bit 6

RRMA

Bit 5

AISD

Bit 4

T16AISD

Bit 3

RED

Bit 2

AIS

Bit 1

Unused

Bit 0

Unused

Reading this register returns the current state value of the RRA, RRMA, AISD,

T16AISD, RED, and AIS maintenance/alarm statuses.

RRA:

The RRA bit is a logic one when the "A" bit (bit 3 in time slot 0 of the non-

frame alignment signal frame) has been a logic one for 2 or 3 consecutive

non-frame alignment signal frames, as determined by the RADEB bit. The

RRA output is updated every two frames.

RRMA:

The RRMA bit is a logic one when the "Y" bit (bit 6 in time slot 16 in frame 0

of the signaling multiframes) has been a logic one for 2 or 3 consecutive

signaling multiframes, as determined by the RMADEB bit. The RRMA bit is

updated every 16 frames.

AISD:

The AISD bit is a logic one after an unframed pattern of all ones with less

than 3 zeros in two consecutive frame times (512 bits) has been detected.

The AISD bit is updated every 512 bit times.

TS16AISD:

The TS16AISD is a logic one after an all-ones byte has been detected in time

slot 16 for 2 consecutive frames while out of signaling multiframe alignment.

PM6344 Datasheet(PDF) 130 Page - PMC-Sierra, Inc

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