PM7346 datasheet(141/419 Pages) PMC

141 / 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 120

Bit

Type

Function

Default

Bit 7

Unused

Bit 6

R/W

SRCZN

Bit 5

R/W

SRCF1

Bit 4

R/W

SRCB1

Bit 3

R/W

SRCG1

Bit 2

R/W

SRCM1

Bit 1

R/W

SRCM2

Bit 0

R/W

SRCC1

SRCC1:

The SRCC1 bit value ORed with input TPOHINS selects the source for the

C1 octet on a bit by bit basis. If the OR results in a logic 0, the C1 bit position

is derived internally as specified by the FIXSTUFF bit in the SPLT

Configuration Register. If the OR results in a logic 1, the C1 bit position is

inserted with the value sampled on TPOH.

SRCM2:

The SRCM2 bit value ORed with input TPOHINS selects the source for the

M2 octet on a bit by bit basis. If the OR results in a logic 0, the M2 bit position

is derived internally as specified by the M2TYPE bit in the SPLT Configuration

value sampled on TPOH. The M2 octet is set to logic 0 (as required by the

ATM Forum User Network Interface specification) by writing this bit position

with a logic 1, and connecting the TPOH input to VSS.

SRCM1:

The SRCM1 bit value ORed with input TPOHINS selects the source for the

M1 octet on a bit by bit basis. If the OR results in a logic 0, the M1 bit position

is derived internally as specified by the M1TYPE bit in the SPLT Configuration

value sampled on TPOH. The M1 octet is set to logic 0 (as required by the

ATM Forum User Network Interface specification) by writing this bit position

with a logic 1, and connecting the TPOH input to VSS.

PM7346 Datasheet(PDF) 141 Page - PMC-Sierra, Inc

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