CDP1877 Overview
The CDP1877 and CDP1877C are programmable 8-level interrupt controllers designed for use in CDP1800 series microprocessor systems. They provide added versatility by extending the number of permissible interrupts from 1 to N in increments of 8. When a high to low transition occurs on any of the PIC interrupt lines (IR0 to IR7), it will be latched and, unless the request is masked, it will cause the INTERRUPT line on...
CDP1877 Key Features
- patible with CDP1800 Series
- Programmable Long Branch Vector Address and Vector Interval
- 8 Levels of Interrupt Per Chip
- Easily Expandable
- Latched Interrupt Requests
- Hard Wired Interrupt Priorities
- Memory Mapped
- Multiple Chip Select Inputs to Minimize Address Space Requirements
- 40oC to CDP1877CE CDP1877E E28.6 +85oC
