Analog Devices AD5258 User Manual page 5

Evaluation Board User Manual
Parallel Port Connection (Information for Visual Basic Program Developers Only)
DGND SDO/O1
SDA_Read
http://www.doc.ic.ac.uk/~ih/doc/par/
8 output pins accessed via the DATA Port
5 input pins (one inverted) accessed via the STATUS Port
4 output pins (three inverted) accessed via the CONTROL Port
The remaining 8 pins are grounded
bit 1
SCL
(Pin 3)
bit 0 SDA
(Pin 2)
Binary Code
Decimal Code
No Activity
Rev. C 11/23/04
VLOGIC
SHDN VDD
1100 1001 1011 1000 1010
12 9 11 8
Send out Send out
BIT_TOGO=1 BIT_TOGO=0
64/256-Position I
Digital Potentiometer
RES/AD1 CS/AD0 CLK/SCL
portID = Val("&H" + "378") [378h = 888]
portID = Val("&H" + "379") [379h = 889]
portID = Val("&H" + "37A") [37Ah = 890]
10
2
C Compatible
Nonvolatile Memory
AD5258/AD5259
SDI/SDA
1100
12
Latch Data