XRT75VL00D datasheet(43/92 Pages) EXAR

43 / 92 page

XRT75VL00D

REV. 1.0.3

E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

0x01

R/W

DMOIE

Writing a “1” to this bit field enables the DMO inter-

rupt and triggers an interrupt when the transmitter

driver fails. Writing a “0” disables the interrupt.

RLOSIE

Writing a “1” to this bit field enables the RLOS inter-

rupt and triggers an interrupt when the RLOS condi-

tion occurs. Writing a “0” disables the interrupt.

RLOLIE

Writing a “1” to this bit field enables the RLOL inter-

rupt and triggers an interrupt when RLOL condition

occurs. Writing a “0” disables the interrupt.

FLIE

Writing a “1” to this bit field enables the FL interrupt

and triggers an interrupt when the FIFO Limit of the

Jitter Attenuator is within 2 bits of overflow/underflow

condition. Writing a “0” disables the interrupt.

NOTE:

This bit field is ignored when the Jitter

Attenuator is disabled.

PRBSIE

Writing a “1” to this bit enables the PRBS bit error

interrupt.

CNT_SATIE

Writing a “1” to this bit enables the PRBS error-

counter saturation interrupt. When the PRBS error

counter reaches 0xFFFF, an interrupt will be gener-

ated.

0x02

Reset

Upon

Read

DMOIS

This bit is set to “1” every time a DMO status change

has occurred since the last cleared interrupt.This bit

is cleared when read.

RLOSIS

This bit is set to “1” every time a RLOS status change

has occurred since the last cleared interrupt. This bit

is cleared when read.

RLOLIS

This bit is set to “1” every time a RLOL status change

has occurred since the last cleared interrupt. This bit

is cleared when read.

FLIS

This bit is set to “1” every time a FIFO Limit status

change has occurred since the last cleared interrupt.

This bit is cleared when read.

PRBSIS

This bit is set to “1” when a PRBS bit error

detected. This bit is cleared when read.

CNT_SATIS

This bit is set to “1” when the PRBS error counter has

saturated (0xFFFF). This bit is cleared when read.

TABLE 16: REGISTER MAP DESCRIPTION

ADDRESS

(HEX)

TYPE

BIT LOCATION

SYMBOL

DESCRIPTION

DEFAULT

VALUE(BIN)

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