XRT79L71_1 Datasheet, PDF (36/434 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
BIT NUMBER
NAME
0
Software RESET
TYPE
R/W
DESCRIPTION
Software RESET:
This READ-WRITE bit-field permits the user to reset the
XRT79L71.
0 - Normal Operation.
1 - Configure the XRT79L71 into RESET Mode.
Device ID Register (Address = 0x0104)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
DEVICE_ID_VALUE [7:0]
R/O
R/O
R/O
R/O
R/O
0
1
1
1
1
BIT 2
R/O
0
BIT 1
R/O
1
BIT 0
R/O
0
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.
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.
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 Inter-
rupt 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
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