PM7346 datasheet(281/419 Pages) PMC

281 / 419 page

PM7346 S/UNI-QJET

DATASHEET

PMC-960835

ISSUE 6

SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3

PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 260

Bit

Type

Function

Default

Bit 7

R/W

Reserved

Bit 6

R/W

Reserved

Bit 5

R/W

Reserved

Bit 4

R/W

Reserved

Bit 3

R/W

Reserved

Bit 2

R/W

EXPLD[2]

Bit 1

R/W

EXPLD[1]

Bit 0

R/W

EXPLD[0]

EXPLD[2:0]:

The EXPLD[2:0] bits contain the expected payload type label bits of the

G.832 E3 Maintenance and Adaptation (MA) byte. The EXPLD[2:0] bits are

compared with the received payload type label extracted from the receive

stream. A payload type label mismatch (PLDM) is declared if the received

payload type bits differs from the expected payload type. If enabled, an

interrupt is asserted upon declaration and removal of PLDM.

For compatibility with old equipment that inserts 000B for unequipped or

001B for equipped, regardless of the payload type, the receive payload type

label mismatch mechanism is based on the following table:

Table 20

- TTB Payload Type Match Configurations

Expected

Received

Action

000

Match

000

001

Mismatch

000

XXX

Mismatch

001

000

Mismatch

001

Match

001

XXX

Match

XXX

000

Mismatch

PM7346 Datasheet(PDF) 281 Page - PMC-Sierra, Inc

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