XRT75L03D Datasheet, PDF (71/134 Pages) Exar Corporation – THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER

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XRT75L03D
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER REV. 1.0.0
REGISTER DESCRIPTION - PER CHANNEL REGISTERS
TABLE 24: SOURCE LEVEL INTERRUPT ENABLE REGISTER - CHANNEL 0 ADDRESS LOCATION = 0X01
Channel 1 Address Location = 0x09
Channel 2 Address Location = 0x11)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
Change of FL Change of LOL Change of LOS Change of
Condition
Condition
Condition DMO Condition
Interrupt Enable Interrupt Enable Interrupt Enable Interrupt Enable
Ch 0
Ch 0
Ch 0
Ch 0
R/O
R/O
R/O
R/O
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT NUMBER
NAME
7-4
3
Reserved
Change of FL
Condition Interrupt
Enable - Ch 0
2
Change of LOL
Condition Interrupt
Enable
TYPE
R/O
R/W
R/W
DEFAULT
VALUE
DESCRIPTION
0
0
Change of FL (FIFO Limit Alarm) Condition Interrupt
Enable - Ch 0:
This READ/WRITE bit-field is used to either enable or dis-
able the Change of FL Condition Interrupt. If the user
enables this interrupt, then the XRT75L03D will generate
an interrupt any time any of the following events occur.
• Whenever the Jitter Attenuator (within Channel 0)
declares the FL (FIFO Limit Alarm) condition.
• Whenever the Jitter Attenuator (within Channel 0) clears
the FL (FIFO Limit Alarm) condition.
0 - Disables the Change in FL Condition Interrupt.
1 - Enables the Change in FL Condition Interrupt.
0
Change of Receive LOL (Loss of Lock) Condition Inter-
rupt Enable - Channel 0:
This READ/WRITE bit-field is used to either enable or dis-
able the Change of Receive LOL Condition Interrupt. If the
user enables this interrupt, then the XRT75L03D will gen-
erate an interrupt any time any of the following events
occur.
• Whenever the Receive Section (within Channel 0)
declares the Loss of Lock Condition.
• Whenever the Receive Section (within Channel 0) clears
the Loss of Lock Condition.
0 - Disables the Change in Receive LOL Condition Inter-
rupt.
1 - Enables the Change in Receive LOL Condition Inter-
rupt.
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