42
CMX158886 cpuModule
BDM-610000049
Rev G
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 Electrostatic Discharge (ESD) and Undershoot Protection
The multiPort interface provides electrostatic discharge (ESD) protection allowing the aDIO port, parallel port,
and floppy port circuits to be protected from electrically charged external objects that may come in contact with
the cpuModule.
The ESD protection minimizes susceptibility of the circuitry to ESD from human contact, and is rated to
withstand up to 2000V with the Human Body Model (HBM) standardized ESD test. The protected circuitry is
also rated to protect against up to 1000V with the Charged Device Model (CDM) standardized ESD test.
In addition to the ESD protection, the circuitry also provides -2V undershoot protection by ensuring that the
pins remain in the off state when such voltage levels are connected as inputs to the cpuModule.
For specific electrical characteristics, refer to Table 4 on page 13.
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
62 for information on programming the multiPort.
Table 27
multiPort aDIO Pinout
CN6 Pin
Function
CN6 Pin
Function
1
strobe 0
2
P0-4
3
P1-0
4
P0-5
5
P1-1
6
P0-6
7
P1-2
8
P0-7
9
P1-3
10
strobe 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
Summary of Contents for BDM-610000049
Page 3: ...Accessing the Analog World www rtd com An ISO9001 2000 Company CMX158886 cpuModules...
Page 4: ...iv CMX158886 cpuModule BDM 610000049 Rev G...
Page 9: ...BDM 610000049 Rev G ix PC 104 and PC 104 Plus Specifications 107 Appendix E Limited Warranty...
Page 10: ...x CMX158886 cpuModule BDM 610000049 Rev G...
Page 26: ...16 CMX158886 cpuModule BDM 610000049 Rev G...
Page 100: ...90 CMX158886 cpuModule BDM 610000049 Rev G...
