TDT RZ2 Manual page 29

System 3
See the "Digital I/O Circuit Design" section of the
information on programming the digital I/O.
By default, all digital I/O are configured as inputs. The data direction for the Digital
I/O is configured using the RZ5D_Control macro in RPvdsEx. Double-click the macro
to access the settings on the Digital I/O tab. The RZ5_Control macro also offers a
Direction Control Mode parameter that enables the macro inputs and allows the user
to control data direction dynamically. For more information on using the RZ5D_Control
macro see the help provided in the macro's properties dialog box. For more
information on addressing and Digital I/O see the
The RZ digital I/O ports have different voltage outputs and logic thresholds
depending on the type. Below is a table listing the different voltage outputs and
thresholds for both types.
byte addressable
bit addressable
LED Indicators
The RZ5D contains 16 LED indicators for the analog and digital I/O. These
indicators are located directly below the VFD and DSP status LEDs. They display
information relative to the various analog and digital I/O. The following tables list the
possible display options and their associated descriptions.
Digital I/O Description
Byte A bits 0 - 7
Byte B bits 0 - 7
Byte C bits 0 - 7
*Note: Byte C Bits 0 - 3 are available via front panel BNCs
Digital I/O Type
logic high
5 V
3.3 V
RPvdsEx Manual
DB25 BNCs
Yes No
Yes No
Yes Yes*
RPvdsEx Manual
Voltage Output
logic low logic high
0 V ≥ 2.5 V
0 V ≥ 1.5 V
1-23
for more
Notes
byte addressable
byte addressable
bit addressable
.
Voltage Input
logic low
0 - 2.45 V
0 - 1.4 V
RZ5D BioAmp Processor