XRT74L73 Datasheet, PDF (60/488 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
OPERATION BLOCK INTERRUPT REGIS-
TER BIT FORMATS
OPERATION CONTROL REGISTER - BYTE 3 (ADDRESS = 0X0100)
BIT 7
BIT 6
BIT 5
BIT 4
Unused
BIT 3
BIT 2
R/O
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
0
PRELIMINARY
BIT 1
R/O
0
BIT 0
Configuration
Control
R/O
0
BIT NUMBER
NAME
7-6
Unused
0
Configuration Control
TYPE
R/O
R/W
DESCRIPTION
Configuration Control:
This READ/WRITE bit-field permits the user to configure the
XRT74L73 device to support any of the following configurations.
• ATM/PPP
• Clear Channel/HDLC
The following table presents the relationship between the value
written into these register bits and the corresponding Mode of
operation.
Configuration Control
0
1
Mode
ATM/PPP
Clear Channel/HDLC
OPERATION CONTROL REGISTER - BYTE 2 (ADDRESS = 0X0101)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
Unused
Interrupt
WC/INT*
R/O
R/O
R/O
R/O
R/O
R/W
0
0
0
0
0
0
BIT 1
Enable
Interrupt
Auto-Clear
R/W
0
BIT 0
Interrupt
Enable
R/W
0
BIT NUMBER
NAME
7-3
Unused
TYPE
R/O
DESCRIPTION
Please set to "0" for normal operation.
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