XRT74L73 Datasheet, PDF (64/488 Pages) Exar Corporation – 3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER

XRT74L73
3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
REV. P1.0.1
PRELIMINARY
BIT NUMBER
NAME
7-4
Unused
3
DS3/E3 LIU/JA Block
Interrupt Status
2
DS3/E3 Framer Block
Interrupt Status
1-0
Unused
TYPE
R/O
R/O
R/O
R/O
DESCRIPTION
DS3/E3 LIU/JA Block Interrupt Status:
This READ-ONLY bit-field indicates whether or not a "DS3/E3
LIU/JA Block" interrupt is awaiting service.
0 - No "DS3/E3 LIU/JA" block interrupt is awaiting service.
1 - At least one "DS3/E3 LIU/JA" block interrupt is awaiting ser-
vice.
DS3/E3 Framer Block Interrupt Status:
This READ-ONLY bit-field indicates whether or not a "DS3/E3
Framer Block" interrupt is awaiting service.
0 - No "DS3/E3 Framer" block interrupt is awaiting service.
1 - At least one "DS3/E3 Framer" block interrupt is awaiting ser-
vice.
OPERATION INTERRUPT STATUS REGISTER - BYTE 0 (ADDRESS = 0X0113)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
Receive
UTOPIA/
POS-PHY
Interface
Block
Interrupt Sta-
tus
Unused
Receive
Transmit
ATM Cell/PPP UTOPIA/
Processor POS-PHY
Block
Interface
Interrupt Sta- Block
tus
Interrupt Sta-
tus
Unused
R/O
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
0
BIT 0
Transmit
ATM Cell/PPP
Processor
Block
Interrupt Sta-
tus
R/O
0
BIT NUMBER
NAME
7
Receive UTOPIA
POS-PHY Interface
Block Interrupt Status
6 -5
Unused
4
Receive ATM Cell/PPP
Processor Block
Interrupt Status
TYPE
R/O
R/O
R/O
DESCRIPTION
Receive UTOPIA/POS-PHY Interface Block Interrupt Status:
This READ-ONLY bit-field indicates whether or not a "Receive
UTOPIA/POS-PHY Interface" block interrupt is awaiting service.
0 - No "Receive UTOPIA/POS-PHY Interface" block interrupt is
awaiting service.
1 - At least one "Receive UTOPIA/POS-PHY Interface" block
interrupt is awaiting service.
Receive ATM Cell/PPP Processor Block Interrupt Status:
This READ-ONLY bit-field indicates whether or not a "Receive
ATM Cell/PPP Processor Block" Interrupt is awaiting service.
0 - No "Receive ATM Cell/PPP Processor block" interrupt is
awaiting service.
1 - At least one "Receive ATM Cell/PPP Processor" block inter-
rupt is awaiting service.
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