PM7346 datasheet(202/419 Pages) PMC

202 / 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 181

Options

Bit

Type

Function

Default

Bit 7

R/W

FERF/RAI

Bit 6

R/W

FEBE

Bit 5

R/W

PTYPE[2]

Bit 4

R/W

PTYPE[1]

Bit 3

R/W

PTYPE[0]

Bit 2

R/W

TUMFRM[1]

Bit 1

R/W

TUMFRM[0]

Bit 0

R/W

TIMEMK

TIMEMK:

The TIMEMK bit determines the state of the Timing Marker bit (bit 8 of the

G.832 Maintenance and Adaptation byte). When TIMEMK is set to logic 1,

the Timing Marker bit in the MA byte is set to logic 1. When TIMEMK is set to

logic 0, the Timing Marker bit in the MA byte is set to logic 0.

TUMFRM[1:0]:

The TUMFRM[1:0] bits reflect the value to be inserted in the Tributary Unit

Multiframe bits (bits 6, and 7 of the G.832 Maintenance and Adaptation byte).

These bits are logically ORed with the TUMFRM[1:0] overhead signals from

the TOH input before being inserted in the MA byte.

PTYPE[2:0]:

The PTYPE[2:0] bits reflect the value to be inserted in the Payload Type bits

(bits 3,4,5 of the G.832 Maintenance and Adaptation byte).

FEBE:

The FEBE bit reflects the value to be inserted in the Far End Block Error

indication bit (bit 2 of the G.832 Maintenance and Adaptation byte). The

FEBE bit value is logically ORed with the FEBE indications generated by the

FRMR for any detected BIP-8 errors. When the FEBE bit is logic 1, bit 2 of

the G.832 MA byte is set to logic 1; when the FEBE bit is logic 0, any BIP-8

error indications from the FRMR causes bit 2 of the MA byte to be set to logic

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