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BDM-610000050 Rev A Chapter 3: Connecting the cpuModule 37
multiPort™ (CN6)
RTD’s exclusive multiPort can be configured as an Advanced Digital I/O (aDIO™), a parallel port, or a floppy drive.
Refer to Chapter 4, Using the cpuModule, to configure the multiPort.
multiPort Configured as an Advanced Digital I/O (aDIO™) Port
The mulitPort connector (CN6) can be configured as an aDIO port. aDIO is 16 digital bits configured as 8-bit
programmable and 8-bit port programmable I/O, providing any combination of inputs and outputs. Match,
event, and strobe interrupt modes mean no more wasting valuable processor time polling digital inputs.
Interrupts are generated when the 8-bit programmable digital inputs match a pattern, or on any value change
event. Bit masking allows selecting any subgroup of 8 bits. The strobe input latches data into the bit
programmable port and generates an interrupt. Refer to multiPort: Advanced Digital I/O Ports (aDIO™) on page
56 for information on programming the multiPort.
Table 22 multiPort aDIO Pinout
CN6 Pin Function CN6 Pin Function
1strobe 02 P0-4
3P1-04P0-5
5P1-16P0-6
7P1-28P0-7
9P1-310strobe 1
11 P1-4 12 GND
13 P1-5 14 GND
15 P1-6 16 GND
17 P1-7 18 GND
19 P0-0 20 GND
21 P0-1 22 GND
23 P0-2 24 GND
25 P0-3 26 +5 V