Description
The CDP1878C is a dual counter-timer consisting of two 16-bit programmable down counters that are independently controlled by separate control registers. The value in the registers determine the mode of operation and control functions. Counters and registers are directly addressable in memory space by any general industry type microprocessors, in addition to input/output mapping with the CDP1800 series microprocessors.

Features
• Compatible with General Purpose and CDP1800 Series Microprocessor Systems
• Two 16-Bit Down Counters and Two 8-Bit Control Registers
• 5 Modes Including a Versatile Variable-Duty Cycle Mode
• Programmable Gate-Level Select
• Two-Complemented Output Pins for Each CounterTimer
• Software-Controlled Interrupt Output
• Addressable in Memory Space or CDP1800-Series I/O Space