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Discription:
The ITC232-A is an integrated circuit containing a general purpose serial/parallel interface, as well as, a number of embedded functions which find applications in data acquisition and control systems.
It provides easy access, from a terminal or computer serial port (via RS-232C), to 32 input/output lines arranged in 5 ports which can be read or written with extremely simple ASCII commands (complex communication protocols are not required.)
This allows control from within a custom written program as well as from any commercial communication software package (terminal for Windows ® , Procomm ® , Telix ® , MAC240®, etc).
The possibility of sending commands to the ITC232-A from any terminal program is very convenient for system debugging before writing a custom program .The IC is hardware platform independent; it will work with any terminal or computer with an RS-232 serial port.
The link requires 3 wires and operates at any standard speed between 300 and 115200 Bauds. The only external components required by the ITC232-A are a voltage driver to handle the RS-232 voltages and a 3.6864 MHz crystal. In addition to serial/parallel/serial interfacing, the ITC232-A displays several other functions.
Features:
Interface Simplicity:
- ASCII commands and data are sent over the serial port
(in either Decimal, Hexadecimal or Binary format.)
- Easy to interface to any serial port via RS232/422/423/485
links.
- Remote (modem) or local control. Remote operation is possible
via a phone link using a modem chip in place of the RS-232
voltage driver.
- ITC232-A can be used with popular terminal and data acquisition
software packages.
- A downloadable DLL is available for controlling the ITC232-A.
Flexible I/O
- 3 general purpose 8 bit I/O ports.
- 24 I/O pins can be configured as IN or OUT.
- All I/O pins provide read back verification.
- Serial and parallel data I/O (SPI).
Powerful Built-in Functions:
- Direct measurement of relative capacitance or resistance.
- Three stepping motor ports with all the necessary logic
to instrument monophasic, biphasic and half-step stepping
modes. Emphasis has been placed in making the stepper interface
easy to use. Stepping rates from 10 to 4000 steps/second.
- Variable width/frequency pulse (PWM) generation (10-10000
Hz, 0-100% duty cycle).
- Built in Help functions.
- A 1 keystroke "Again" command to repeat the previous command.
- High and Low multiple interrupt recognition via 2 pins;
IRQH and IRQL.
- Hardware and software selectable Baud rate over the 300-115200
range.
- Four channels for reading relative resistance or capacitance.
- On-screen help (a summary of all commands is sent to the
terminal).
- A configuration report feature which sends the active
configuration of any parallel port, the PWM or the stepper
motor ports back to the terminal.
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The ITC232-A: Your Solutions Building Block
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