MATLAB XPC TARGET 4 - DEVICE DRIVERS Spécifications Page 340

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9 ComputerBoards
9-84
CIO-DO24DD
The CIO-DO24DD is an I/O board with 24 open-collector digital output lines.
xPC Target supports this board with one driver block:
“CIO-DO24DD Digital Output
Board Characteristics
CIO-DO24DD Digital Output
The CIO-DIO24DD has one 8255 chip with 3 ports (A,B,C). Each port has a
maximum of 8 digital I/O lines that are configured as outputs.
Use a separate diver block for each port. By selecting the digital output driver
block, the port is configured as output.
Scaling Input to Output
Driver Block Parameters
Channel Vector - Enter numbers between 1 and 8 to select the digital output
lines used with this port. This driver allows the selection of individual digital
Board name CIO-DO24DD
Manufacturer ComputerBoards
Bus type ISA
Access method I/O mapped
Multiple block instance support Yes
Multiple board support Yes
Hardware Output Block Input Data Type Scaling
TTL double < 0.5 = TTL low
>
0.5 = TTL high
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