CDP1802 Microprocessor Kit

Description

I designed this kit from the suggestion by Leonard Rose. The CDP1802 Microprocessor is very interesting CPU. I use the same platform as the 6809 kit. I spent a month to develop it. The first try PCB was working very good. So most of the time are spent on monitor program coding. The kit runs with Xtal 3.6864MHz using the on chip oscillator. Memory spaces are 28kB monitor ROM, 32kB RAM and 4kB memory mapped I/O. The kit provides 36 keys, 6-digit seven segment display, 9600 UART chip, the 8-bit gpio1 debugging LED, and the text LCD interface. In addition, the 10ms tick generator is also provided for timer interrupt testing. We can enter 1802 instructions with hex code and test run directly. The built-in BREAK subroutine provides CPU registers saving. The expansion header provides interface signals for testing with IN and OUT instructions.
.
Hardware features:
CPU: Intersil CDP1802 CMOS Microprocessor @3.6864MHz clock
Memory: 32kB SRAM, 28kB EPROM, 4kB memory mapped I/O
Memory and I/O Decoder chip: Programmable Logic Device GAL22V10D
Display: high brightness 6-digit 7-segment LED
Keyboard: 36 keys
RS232 port: INS8250 UART, 9600 bit/s 8n1
Debugging LED: 8-bit GPIO1 LED at location 00
Q LED: high brightness yellow color dot LED for Q output bit
Tick: 10ms tick produced by 89C2051 for time trigger experiment
Text LCD interface: direct CPU bus interface text LCD-Brownout reset: KIA7042 reset chip for power brownout reset
Expansion header: 40-pin header
More technical details: hardware schematic, program examples, monitor source code please visit
https://www.kswichit.com/1802/1802.htm
Kit is pre-assembled and tested. No LCD, no AC Adapter. Any LCD with HD44780 controller can be used.
LCD and power supply details is here,
http://www.kswichit.com/eBay/powerjack.pdf
For DIY kit, same price with free 16x2 LCD.
Free shipping worldwide with tracking.