MATLAB XPC TARGET 4 - DEVICE DRIVERS Specifikace Strana 328

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9 ComputerBoards
9-72
CIO-DIO48
The CIO-DIO48 is an I/O board with 48 digital I/O lines.
xPC Target supports this board with two driver blocks:
“CIO-DIO48 Digital Input”
“CIO-DIO48 Digital Output”
Board Characteristics
CIO-DIO48 Digital Input
The CIO-DIO48 has two 8255 chips (1,2). Each chip has three ports (A,B,C).
Each port has a maximum of 8 digital I/O lines that can be configured as inputs
or outputs.
Use a separate diver block for each port. By selecting the digital input driver
block, the port is configured as input.
Scaling Input to Output
Driver Block Parameters
Board name CIO-DIO48
Manufacturer ComputerBoards
Bus type ISA
Access method I/O mapped
Multiple block instance support Yes
Multiple board support Yes
Hardware Input Block Output Data Type Scaling
TTL double TTL low = 0.0
TTL high = 1.0
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