XRT79L71_1 Datasheet, PDF (104/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
REV. 1.0.0
Receive E3 Interrupt Status Register # 1 - G.751 (Address = 0x1114)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
COFA
Interrupt
Status
Change in
OOF Defect
Condition
Interrupt
Status
Change in
LOF Defect
Condition
Interrupt
Status
R/O
R/O
R/O
RUR
RUR
RUR
0
0
0
0
0
0
BIT 1
Change in
LOS Defect
Condition
Interrupt
Status
RUR
0
BIT 0
Change in
AIS Defect
Condition
Interrupt
Status
RUR
0
BIT NUMBER
NAME
7-5
Unused
4
COFA Interrupt Status
3
Change in OOF Defect
Condition Interrupt Status
TYPE
R/O
RUR
RUR
DESCRIPTION
Change of Framing Alignment (COFA) Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the
Change of Framing Alignment (COFA) interrupt has occurred
since the last read of this register.
0 - The COFA Interrupt has NOT occurred since the last read of
this register.
1 - The COFA Interrupt has occurred since the last read of this
register.
Change of OOF (Out of Frame) Defect Condition Interrupt
Status:
This RESET-upon-READ bit-field indicates whether or not the
Change of OOF Defect Condition Interrupt has occurred since
the last read of this register.
If this interrupt is enabled, then the Receive E3 Framer block
generates an interrupt in response to either of the following con-
dition.
• Whenever the Receive E3 Framer block declares the OOF
Defect Condition.
• Whenever the Receive E3 Framer block clears the OOF
Defect Condition.
0 - Indicates that the Change in OOF Defect Condition Interrupt
has NOT occurred since the last read of this register.
1 - Indicates that the Change in OOF Defect Condition Interrupt
has occurred since the last read of this register.
NOTE: The user can obtain the current OOF defect condition of
the Receive E3 Framer block by reading out the state of
Bit 5 (OOF Defect Condition Declared) within the
Receive E3 Configuration and Status # 2 - G.751
(Address = 0x1111).
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