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X9400 Datasheet(PDF) 7 Page - Intersil Corporation

Part # X9400
Description  Low Noise/Low Power/SPI Bus
Download  21 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

X9400 Datasheet(HTML) 7 Page - Intersil Corporation

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7
FN8189.1
March 31, 2005
Figure 8. Increment/Decrement Timing Limits
Table 1. Instruction Set
Instruction
Instruction Set
Operation
I3
I2
I1
I0 R1 R0 P1 P0
Read Wiper Counter Register
1
0
0
1
0
0
P1
P0 Read the contents of the Wiper Counter Register
pointed to by P1 - P0
Write Wiper Counter Register
1
0
1
0
0
0
P1
P0 Write new value to the Wiper Counter Register
pointed to by P1 - P0
Read Data Register
1
0
1
1
R1 R0
P1
P0 Read the contents of the Data Register pointed to
by P1 - P0 and R1 - R0
Write Data Register
1
1
0
0
R1 R0
P1
P0 Write new value to the Data Register pointed to by
P1 - P0 and R1 - R0
XFR Data Register to Wiper
Counter Register
11
0
1
R1 R0
P1
P0 Transfer the contents of the Data Register pointed to
by R1 - R0 to the Wiper Counter Register pointed to by
P1 - P0
XFR Wiper Counter Register
to Data Register
11
1
0
R1 R0
P1
P0 Transfer the contents of the Wiper Counter
Register pointed to by P1 - P0 to the Register
pointed to by R1 - R0
Global XFR Data Register to
Wiper Counter Register
00
0
1
R1 R0
0
0
Transfer the contents of the Data Registers pointed
to by R1 - R0 of all four pots to their respective Wiper
Counter Register
Global XFR Wiper Counter
Register to Data Register
10
0
0
R1 R0
0
0
Transfer the contents of all Wiper Counter
Registers to their respective data Registers
pointed to by R1 - R0 of all four pots
Increment/Decrement Wiper
Counter Register
00
1
0
0
0
P1
P0 Enable Increment/decrement of the Wiper Counter
Register pointed to by P1 - P0
Read Status (WIP bit)
0
1
0
1
0
0
0
1
Read the status of the internal write cycle, by
checking the WIP bit.
SCK
SI
VW/RW
INC/DEC CMD Issued
tWRID
Voltage Out
X9400


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