PM7375-SC datasheet(118/430 Pages) PMC

118 / 430 page

PM7375 LASAR-155

DATA SHEET

PMC-931127

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

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

102

10.1.2 Register 0x01 (0x004): LASAR-155 Master Configuration

Bit

Type

Function

Default

Bit 15

R/W

AUTOXOFF

Bit 14

R/W

TBYP

Bit 13

R/W

RBYP

Bit 12

Unused

Bit 11

Unused

Bit 10

Unused

Bit 9

R/W

RATE[1]

Bit 8

R/W

RATE[0]

Bit 7

R/W

UNI_POTS

Bit 6

R/W

AUTOFEBE

Bit 5

R/W

AUTOLRDI

Bit 4

R/W

AUTOPRDI

Bit 3

R/W

TFIFOINV

Bit 2

R/W

RFIFOINV

Bit 1

R/W

RXDINV

Bit 0

R/W

STS1

STS1:

The STS1 bit configures the LASAR-155 to expect a STS-1 Physical

Transmission Convergence sub layer. When STS1 is set to logic one, the

LASAR-155 is configured for a STS-1 Physical Transmission Convergence sub

layer. When STS1 is set to logic zero, the LASAR-155 is configured for a STS-3c

(STM-1) Physical Transmission Convergence sub layer.

RXDINV:

The RXDINV bit selects the active polarity of the RXD+/- signals. The default

configuration selects RXD+ to be active high and RXD- to be active low. When

RXDINV is set to logic one, RXD+ to be active low and RXD- to be active high.

Polarity invert (RXDINV) is not supported when line loopback (LLE) is enabled (If

LLE = 1 then RXDINV must be set to 0).

RFIFOINV:

The RFIFOINV bit selects the active polarity of the RFIFOEB/RFIFOFB signal.

The default configuration selects RFIFOEB/RFIFOFB to be active low. When

RFIFOINV is set to logic one, the RFIFOEB/RFIFOFB signal becomes active

high. If RXPHYBP is set to logic one, RFIFOINV is not used and should be set

to logic zero.

PM7375-SC Datasheet(PDF) 118 Page - PMC-Sierra, Inc

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