XRT79L71IB datasheet(87/434 Pages) EXAR

87 / 434 page

XRT79L71

REV. 1.0.0

1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION

Change of DS3 Idle Con-

dition Interrupt Enable

R/W

Change in DS3 Idle Condition Interrupt Enable:

This READ/WRITE bit-field permits the user to either enable or

disable the Change in DS3 Idle Condition Interrupt, within the

XRT79L71. If the user enables this interrupt, then the Receive

DS3/E3 Framer block will generate an interrupt in response to

either of the following conditions.

• The instant that the Receive DS3/E3 Framer block declares

the DS3 Idle condition.

• The instant that the Receive DS3/E3 Framer block clears the

DS3 Idle condition

.0 - Disables the Change in DS3 Idle Condition Interrupt.

1 - Enables the Change in DS3 Idle Condition Interrupt.

Change of FERF/RDI

Defect Condition Inter-

rupt Enable

R/W

Change in FERF/RDI Defect Condition Interrupt Enable:

This READ/WRITE bit-field permits the user to either enable or

disable the Change in FERF/RDI (Far-End Receive Failure/

Remote Defect Indicator) Defect Condition Interrupt, within the

XRT79L71. If the user enables this interrupt, then the Receive

DS3/E3 Framer block will generate an interrupt in response to

either of the following conditions.

• The instant that the Receive DS3/E3 Framer block declares

the FERF/RDI defect condition.·

• The instant that the Receive DS3/E3 Framer block clears the

FERF/RDI defect condition.

0 - Disables the Change in FERF/RDI Defect Condition Interrupt.

1 - Enables the Change in FERF/RDI Defect Condition Interrupt.

Change of AIC State

Interrupt Enable

R/W

Change in AIC State Interrupt Enable:

This READ/WRITE bit-field permits the user to either enable or

disable the Change in AIC State Interrupt, within the XRT79L71.

If the user enables this interrupt, then the Receive DS3/E3

Framer block will generate an interrupt in response to it detecting

a change in the AIC bit-field, within the incoming DS3 data

stream.

0 - Disables the Change in AIC State Interrupt

1 - Enables the Change in AIC State Interrupt

Change of OOF Defect

Condition Interrupt

Enable

R/W

Change in OOF Defect Condition Interrupt Enable:

This READ/WRITE bit-field permits the user to either enable or

disable the Change in OOF (Out of Frame) Defect Condition

Interrupt, within the XRT79L71. If the user enables this interrupt,

then the Receive DS3/E3 Framer block will generate an interrupt

in response to either of the following conditions.·

• The instant that the Receive DS3/E3 Framer block declares

the OOF defect condition.

• The instant that the Receive DS3/E3 Framer block clears the

OOF defect condition.

0 - Disables the Change in OOF Defect Condition Interrupt.

1 - Enables the Change in OOF Defect Condition Interrupt.

BIT NUMBER

NAME

TYPE

DESCRIPTION

XRT79L71IB Datasheet(PDF) 87 Page - Exar Corporation

XRT79L71IB Datasheet(HTML) 87 Page - Exar Corporation

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