Specifications

DM6804

Use a separate driver block for each port. By selecting the digital input driver

block, the port is configured as input.

Channel Vector - Enter numbers between 1 and 8 to select the digital input

lines used with this port. This driver allows the selection of individual digital

input lines in any order. The number of elements defines the number of digital

lines used.

For example, to use all of the digital inputs for one port, enter

[1,2,3,4,5,6,7,8]

Number the lines beginning with 1 even if the board manufacturer starts

numbering the lines with 0.

Port - From the list choose either A, B, or C. The port name defines which port

is used for this driver block. Each port has a maximum of 8 digital lines that

can be configured as inputs. In each case, one block is needed for each port.

Sampletime - Enter a base sample time or a multiple of the base sample time.

BaseAddress - Enter the base address of the board. This entry must

corresponds to the DIP-switch settings on the board. For example, if the base

address is 300 (hexadecimal), enter

0x300

DM6804 Digital Output

The DM6804 has a 8255 chip with 3 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 driver block for each port. By selecting the digital output driver

block, the port is configured as output.

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

output lines in any order. The number of elements defines the number of digital

lines used.

For example, to use all of the digital outputs for one port, enter

[1,2,3,4,5,6,7,8]

Number the lines beginning with 1 even if the board manufacturer starts

numbering the lines with 0.