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XRT79L71IB Datasheet(PDF) 64 Page - Exar Corporation

Part # XRT79L71IB
Description  1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -
PDF  434 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT79L71IB Datasheet(HTML) 64 Page - Exar Corporation

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XRT79L71
55
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - REGISTER/MAP DESCRIPTION
REV. 1.0.0
Transmit UTOPIA Interface - Port Address Register (Address = 0x0593)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
Transmit UTOPIA Port Address[4:0]
R/O
R/O
R/O
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT NUMBER
NAME
TYPE
DESCRIPTION
7 - 5
Unused
R/O
4 - 0
Transmit UTOPIA Port
Address[4:0]
R/W
Transmit UTOPIA Port Address[4:0]:
These READ/WRITE register bits, along with the Transmit UTO-
PIA Port Number[4:0] bits (within the Trasnmit UTOPIA Port
Number Register (Address = 0x0597) permit the user to assign a
unique Transmit UTOPIA address the XRT79L71.
For UTOPIA Level 2/3 applications, the user can write in any
value, ranging from 0x00 through 0x1E into this register.
The Transmit UTOPIA Address Assignment Procedure:
In order to assign a UTOPIA Address to a given Channel (or
Port) within the XRT79L71, the user must do the following.
a. Write the value corresponding to a given XRT79L71
Channel into the Transmit UTOPIA Port Number Register
(Address = 0x0597).
b. Write the corresponding UTOPIA Address value into this
register.
Once this two-step procedure has been executed, then the
XRT79L71 Channel (as specified during step a) will be assigned
the Transmit UTOPIA Address value (as specified during step b).
Transmit UTOPIA Interface - Port Number Register (Address = 0x0597)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Unused
Transmit UTOPIA Port Number[4:0]
R/O
R/O
R/O
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
BIT NUMBER
NAME
TYPE
DESCRIPTION
7 - 5
Unused
R/O



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