XRT72L13 datasheet(183/370 Pages) EXAR

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M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

XRT72L13

PRELIMINARY

REV. 1.0.6

171

This “Read/Write” bit-field permits the user to enable

or disable the “DS2 Far-End Receive Failure” Inter-

rupt.

Setting this bit-field to “1” enables this interrupt. Con-

versely, setting this bit-field to “0” disables this inter-

rupt.

Bit 2 - DS2 RED Alarm Interrupt Enable

This “Read/Write” bit-field permits the user to enable

or disable the “DS2 RED Alarm” Interrupt.

Setting this bit-field to “1” enables this interrupt. Con-

versely, setting this bit-field to “0” disables this inter-

rupt.

Bit 1 - DS2 AIS Interrupt Enable

This “Read/Write” bit-field permits the user to enable

or disable the “DS2 AIS” Interrupt.

Setting this bit-field to “1” enables this interrupt. Con-

versely, setting this bit-field to “0” disables this inter-

rupt.

Bit 0 - DS2 RESV Interrupt Enable.

To be provided in the next update.

2.3.2.132 DS2 # 7 Framer Interrupt Register

2.3.2.133 DS2 # 7 Framer Status Register

Bit 5 - DS2 COFA (Change of Framing Alignment)

Status

This “Read-Only” bit-field reflects the current “COFA”

status of DS2 Channel # 7.

This bit-field will be set to “0” is there is no “Change of

Framing Alignment” in DS2 Channel # 7. Converse-

ly, this bit-field will be set to “1” is there is a “Change

of Framing Alignment” in DS2 Channel # 7.

Bit 4 - DS2 OOF (Out-of-Frame) Status

This “Read-Only” bit-field reflects the current “OOF”

status of DS2 Channel # 7.

This bit-field will be set to “0” if DS2 Channel # 7 is

currently in the “In-Frame” condition. Conversely,

this bit-field will be set to “1” if DS2 Channel # 7 is

currently declaring an “Out-of-Frame” condtion.

Bit 3 - DS2 FERF (Far-End Receive Failure) Status

his “Read-Only” bit-field reflects the current “FERF”

status of DS2 Channel # 7.

This bit-field will be set to “0” if DS2 Channel # 7 is

currently not declaring the “FERF” condition. Con-

versely, this bit-field will be set to “1” if DS2 Channel #

1 is currently declaring a “FERF” condtion.

Bit 2 - DS2 RED Alarm Status

This “Read-Only” bit-field reflects the current “RED

Alarm” status of DS2 Channel # 7.

This bit-field will be set to “0” if DS2 Channel # 7 is

not currently declaring a “RED Alarm” condition.

Conversely, this bit-field will be set to “1” if DS2 Chan-

nel # 7 is currently declaring a “RED Alarm” condition.

Bit 1 - DS2 AIS (Alarm Indication Signal) Status

This “Read-Only” bit-field reflects the current “AIS”

status of DS2 Channel # 1.

DS2 # 7 FRAMER INTERRUPT REGISTER (ADDRESS = 0XB5)

BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0

Unused

Change in

DS2 COFA

Interrupt

Enable

Change in

DS2 OOF

Interrupt

Enable

Change in

DS2 FERF

Interrupt

Enable

Change in

DS2 RED

Alarm

Interrupt

Enable

Change in

DS2 AIS

Interrupt

Enable

Change in

DS2

RESV

Interrupt

Enable

R/O

RUR

0000

000

DS2 # 7 FRAMER STATUS REGISTER (ADDRESS = 0XB5)

BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0

Unused

DS2 COFA

Status

DS2 OOF

Status

DS2 FERF

Status

DS2 RED

Alarm

Status

DS2 AIS

Status

DS2

RESV

Status

R/O

R/W

0000

000

XRT72L13 Datasheet(PDF) 183 Page - Exar Corporation

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