XRT79L71 Datasheet, PDF (92/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

XRT79L71
REV. P1.0.3
PRELIMINARY
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1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
BIT NUMBER
NAME
7-0
Device ID Value
TYPE
R/O
DESCRIPTION
Device ID Value:
This READ-ONLY bit-field is set to the value "0x7A" and permits
the user's software code to uniquely identify this device as the
XRT79L71 device.
REVISION ID REGISTER (ADDRESS = 0X0105)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Revision Number Value
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
BIT 2
R/O
0
BIT 1
R/O
0
BIT 0
R/O
1
BIT NUMBER
NAME
7-0
Revision Number Value
TYPE
R/O
DESCRIPTION
Revision Number Value:
This READ-ONLY bit-field is set to the value that corresponds to
its revision number. Revision A silicon will be set to the value
"0x01". This register permits the user's software code to
uniquely identify the revision number of the XRT79L71 device.
OPERATION INTERRUPT STATUS REGISTER - BYTE 1 (ADDRESS = 0X0112)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
DS3/E3
LIU/JA Block
Interrupt
Status
DS3/E3
Framer Block
Interrupt
Status
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
BIT 1
BIT 0
Unused
R/O
R/O
0
0
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.
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