IO, interrupt sources, external or internal clock reference, custom state machine designs. RS485 IO, FIFO memory, state machine control, indep. These IO's can be custom configured to be TTL or RS485 compatible in several combinations. Perfect for your embedded control applications. All 48 IO channels can be used as interrupt generators.
Interrupts are programmable to be enabled, active high or low, and edge or level triggered.
A 470 ohm pull-up resistor is provided on board. An external oscillator position is provided for custom situations. The registers are mapped as 16 bit words. All registers are read-writeable. Parallel Interface 48 independent channels.