GPIO-MM-21

This product is supported for DSCUD 8.0 and above.

Board Initialization

To use the GPIO-MM-21 board in UD, the dscInitBoard function should use the board macro DSC_GPIO21. This is shown in the example below.

dscInitBoard( DSC_GPIO21 , &dsccb, &board );

Digital I/O

Max Ports:	12 8-bit bi-directional ports with programmable direction bit by bit and inverting logic thus providing 96 DIO lines. Digital I/O lines on GPIO-MM-21 do not require configuration. Writing a 0 to any bit drives the pin high and also enables it as an input. Writing a 1 to a bit drives the pin low and forces it to an output. A high input will read back as a 0, and a low input will readback as a 1.

GPIO-MM-21 Universal Driver Functions

• dscDIOInputBit()

• dscDIOInputByte()

• dscDIOOutputBit()

• dscDIOOutputByte()

• dscDIOSetConfig()