XRT79L71_1 Datasheet, PDF (33/434 Pages) Exar Corporation – 1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -

XRT79L71
REV. 1.0.0
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
OPERATION BLOCK INTERRUPT REGISTER BIT FORMATS
Operation Control Register - Byte 3 (Address = 0x0100)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
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
Configura-
tion Control
R/W
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
XRT79L71 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
Unused
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
BIT 2
Interrupt
WC/INT*
R/W
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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