Acces PAD128, User Manual

Page: 8 / 39

PAD128 Manual
Page 1-2
Manual MPAD128.D1g
Digital Input/Output
The PAD128 also has capability for 16 digital input/output bits that can be programmed as inputs
or outputs on a groups-of-eight basis. This function is based on the industry-standard type 8255
programmable peripheral interface and the A and B ports are available for use.
Special Functions
Control logic in the PAD128 uses a programmable array and special functions can be factory
programmed. If you have need for special functions such as external synchronization give us a call.
Utility Software
Programs on 3½" diskette or CD-ROM are included with the PAD128. These programs are based
on the assumption that the PCMCIA Card and Socket Services have been loaded on the host
computer to provide the software interface to the card slot drive (these services are normally
provided by Windows).
The diskette/CD includes a program called FINDBASE that helps you find an unused base address
to use with the card when using DOS. PAD128 supports base addresses from 100h to 3FFh. Also,
there is a TSR memory-resident program required to configure the card for it to be recognized by
the Card and Socket Services when using DOS.
Sample programs in 6 languages (Borland C 3.5, Turbo Pascal 7.0, C++Builder 3, Delphi 4.0, Visual
C++ 5.0, and Visual BASIC 5.0) are provided.
Specifications
Data Acquisition
•
Analog Inputs: As many as eight single-ended inputs, or four differential inputs, or a
mixture of both but not to exceed use of eight input pins. (See the
limitation on pairing mentioned in the Data Acquisition section.)
•
Input Voltage Range: Ch 0 and 1: ± 10V; Ch 2 and 3: ± 5V; Ch 4 and 5: 0-5V;
Ch 6 and 7: 0-0.1V .
Note
These are the default ranges. If your card has been modified, there will be an addendum sheet in the
front of the manual.