XRT79L71 Datasheet, PDF (253/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

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PRELIMINARY
1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L71
REV. P1.0.3
BIT NUMBER
NAME
4
Change of DS3 Idle
Condition Interrupt Status
3-2
1
Unused
Change of OOF
Condition Interrupt Status
0
Unused
TYPE
RUR
R/O
RUR
R/O
DESCRIPTION
Change of DS3 Idle Condition Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the
"Change of DS3 Idle Condition" Interrupt (per the Secondary
Frame Synchronizer block) has occurred since the last read of
this register.
0 - Indicates that the "Change of DS3 Idle Condition" Interrupt
(per the Secondary Frame Synchronizer block) has NOT
occurred since the last read of this register.
1 - Indicates that the "Change of DS3 Idle Condition" Interrupt
(per the Secondary Frame Synchronizer block) has occurred
since the last read of this register.
NOTE: The user can determine the current "DS3 Idle" staet (per
the Secondary Frame Synchronizer" block) by reading
out the state of Bit 5 (Secondary Frame Synchronizer -
DS3 Idle Pattern Detected) within the Receive DS3/E3
Status Register - Secondary Frame Synchronizer block"
register (Direct Address = 0x11F1).
Change of OOF Condition Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the
"Change of OOF Condition" Interrupt (per the Secondary Frame
Synchronizer block) has occurred since the last read of this reg-
ister.
0 - Indicates that the "Change of OOF Condition" Interrupt (per
the Secondary Frame Synchronizer block) has NOT occurred
since the last read of this register.
1 - Indicates that the "Change of OOF Condition" Interrupt (per
the Secondary Frame Synchronizer block) has occurred since
the last read of this register.
NOTE: The user can determine the current state of "LOS" (per
the Secondary Frame Synchronizer" block) by reading
out the state of Bit 4 (Secondary Frame Synchronizer -
OOF Defect Declared) within the Receive DS3/E3
Status Register - Secondary Frame Synchronizer block"
register (Direct Address = 0x11F1).
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