simple 8086-based microcomputer

basic 8086 system timing

detailed SDK-86 board

SDK-86 complete schematics

address decoders

interrupts

8254

8259A

8255A

8279

8237 and 8272A

8251A

RS-232C

memory

	refresh timing and control block diagram
	dynamic RAM controller
	local memory system
	global memory system

including controllers

minimal 8086 system

displaying contents of CX register

IBM PC motherboard

credits