XRT74L73 Datasheet, PDF (66/488 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
2
DS3/E3 Framer Block
Interrupt Enable
1-0
Unused
TYPE
R/W
DESCRIPTION
DS3/E3 Framer Block Interrupt Enable:
This READ/WRITE bit permits the user to either enable or dis-
able the DS3/E3 Framer Block for interrupt generation. If the
user writes a "0" to this register bit and disables the "DS3/E3
Framer Block" (for interrupt generation), then all "DS3/E3
Framer Block" interrupts will be disabled for interrupt generation.
If the user writes a "1" to this register bit, he/she will still need to
enable the individual "DS3/E3 Framer Block" interrupt(s) at the
"Source Level" in order to enable that particular interrupt.
0 - Disable all "DS3/E3 Framer Block" interrupts within the
device.
1 - Enables the "DS3/E3 Framer Block" at the "Block-Level".
OPERATION INTERRUPT ENABLE REGISTER - BYTE 0 (ADDRESS = 0X0117)
BIT 7
Receive
UTOPIA/
POS-PHY
Interface
Block
Interrupt
Enable
BIT 6
BIT 5
Unused
BIT 4
Receive
ATM Cell/PPP
Processor
Block
Interrupt
Enable
BIT 3
Transmit
UTOPIA/
POS-PHY
Interface
Block
Interrupt
Enable
BIT 2
BIT 1
Unused
R/W
R/O
R/O
R/W
R/W
R/O
R/O
0
0
0
0
0
0
0
BIT 0
Transmit
ATM Cell/PPP
Processor
Block
Interrupt
Enable
R/W
0
BIT NUMBER
NAME
7
Receive
UTOPIA/POS-PHY
Interface Block Interrupt
Enable
6-5
Unused
TYPE
R/W
R/O
DESCRIPTION
Receive UTOPIA/POS-PHY Interface Block Interrupt Enable:
This READ/WRITE bit permit the user to either enable or disable
the Receive UTOPIA/POS-PHY Interface Block for interrupt gen-
eration. If the user writes a "0" to this register bit and disables
the "Receive UTOPIA/POS-PHY Interface Block" (for interrupt
generation), then all "Receive UTOPIA/POS-PHY Interface
Block" interrupts will be disabled for interrupt generation. If the
user writes a "1" to this register bit, he/she will still need to
enable the individual "Receive UTOPIA/POS-PHY Interface
Block" interrupt(s) at the "Source Level" in order to enable that
particular interrupt.
0 - Disable all "Receive UTOPIA/POS-PHY Interface Block"
interrupts within the device.
1 - Enables the "Receive UTOPIA/POS-PHY Interface Block" at
the "Block-Level".
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