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XRT83SL216IB Datasheet(PDF) 28 Page - Exar Corporation

Part # XRT83SL216IB
Description  16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
PDF  42 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT83SL216IB Datasheet(HTML) 28 Page - Exar Corporation

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XRT83SL216
26
16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
4.0
SERIAL MICROPROCESSOR INTERFACE BLOCK
The serial microprocessor uses a standard 3-pin serial port with CS, SCLK, and SDI for programming the LIU.
Optional pins such as SDO, INT, and RESET allow the ability to read back contents of the registers, monitor
the LIU via an interrupt pin, and reset the LIU to its default configuration by pulling reset "Low" for more than
10
µS. A simplified block diagram of the Serial Microprocessor is shown in Figure 20.
FIGURE 20. SIMPLIFIED BLOCK DIAGRAM OF THE SERIAL MICROPROCESSOR INTERFACE
NOTE:
If the R/W bit is set to "1", then this denotes a "READ" operation with the Microprocessor Serial Interface.
Conversely, if the R/W bit is set to "0", then this denotes a "WRITE" operation.
FIGURE 21. MICROPROCESSOR SERIAL INTERFACE STRUCTURE
Serial
Microprocssor
Interface
CS
SCLK
SDI
INT
SDO
RESET
D0
D1
D2
D7
D6
D5
D4
D3
High Z
SDO
A0
D0
R/W
D1
0
A5
A4
A3
A2
A1
D7
D6
D5
D4
D3
D2
SDI
12
34
567
89
10
11
12
13
14
15
16
SClk
CS
High Z



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