XRT75R12IB datasheet(69/90 Pages) EXAR

69 / 90 page

XRT75R12

REV. 1.0.4

TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR

TABLE 30: SOURCE LEVEL INTERRUPT ENABLE REGISTER - CHANNEL n ADDRESS LOCATION = 0XM1

(n = [0:11] & M= 0-5 & 8-D)

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

Reserved

Change of FL

Condition

Interrupt Enable

Ch n

Change of LOL

Condition

Interrupt Enable

Ch n

Change of LOS

Condition

Interrupt Enable

Ch n

Change of

DMO Condition

Interrupt Enable

Ch n

R/W

BIT NUMBER

NAME

TYPE

DESCRIPTION

7 - 4

Reserved

R/O

Change of FL

Condition Interrupt

Enable - Ch n

R/W

Change of FL (FIFO Limit Alarm) Condition Interrupt Enable - Ch n:

This READ/WRITE bit-field is used to enable or disable the Change of FIFO

Limit Alarm Condition Interrupt. If the user enables this interrupt, the

XRT75R12 will generate an interrupt if any of the following events occur.

• Whenever the Jitter Attenuator (within Channel n) declares the FL (FIFO

Limit Alarm) condition.

• Whenever the Jitter Attenuator (within Channel n) clears the FL (FIFO

Limit Alarm) condition.

0 - Disables the Change in FL Condition Interrupt.

1 - Enables the Change in FL Condition Interrupt.

Change of LOL

Condition Interrupt

Enable

R/W

Change of Receive LOL (Loss of Lock) Condition Interrupt Enable - Channel

This READ/WRITE bit-field is used to enable or disable the Change of

Receive LOL Condition Interrupt. If the user enables this interrupt, then the

XRT75R12 will generate an interrupt any time any of the following events

occur.

• Whenever the Receive Section (within Channel n) declares the Loss of

Lock Condition.

• Whenever the Receive Section (within Channel n) clears the Loss of Lock

Condition.

0 - Disables the Change in Receive LOL Condition Interrupt.

1 - Enables the Change in Receive LOL Condition Interrupt.

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