QMM-10-XT Diamond Systems Counter/Timer Digital I/O Module

The Diamond Systems Quartz-MM Series Counter/Timer Digital I/O Modules use the 9513 counter/timer IC (originally from AMD) to provide versatile counting and timing capabilities. The 9513 chip has a high degree of functionality all under software control. It can perform frequency and period measurement, pulse-width modulation (PWM) and frequency-shift keying (FSK) signal generation, event counting, programmable pulse and one-shot generation, and more.

Each chip contains five counters and an internal frequency generator. One chip's frequency generator output is made available on the I/O header. The five counters can count in both binary and BCD modes, and they can be cascaded together (one counter's output is the next counter's input) to create wider counters.

The count direction, input source, input edge, gate function, and output signal are all programmable, providing maximum flexibility in counter configuration to suit all types of applications. Multiple counters can be latched simultaneously to avoid skew in the readings. All counter features are supported in our Universal Driver software.

The board provides a PC/104 bus interrupt input. By connecting a counter output to the interrupt input and using the Universal Driver "User Interrupt" feature, you can generate interrupts at a programmable rate for real-time control applications. Also included are eight TTL digital inputs and eight TTL digital outputs. All user I/O is contained on a single 50-pin header. Mating cable is C-50-18.

Quartz-MM is manufactured with 5 or 10 counter/timers and in commercial or industrial temperature range. The 0-70C rated boards use AMD AM9513APC chips with 7MHz maximum input frequency. The -40 to +85C rated boards use Celeritous CTSC9513API-2 chips with 20MHz maximum input frequency. All models include an on-board 4MHz clock oscillator.