simple 8086-based microcomputer

basic 8086 system timing

detailed SDK-86 board

SDK-86 complete schematics

address decoders

	parallel ROMs with decoder
	address decoding for eight 2732s
	woksheet for eight 2kB RAMs
	adding a port device decoder
	8086 memory banks
	SDK-86 (A26) ROM decoder PROM
	ROM memory map for SDK-86 board
	SDK-86 (A29) RAM decoder PROM
	port decoder for SDK-86
	"off-board" decoder PROM
	74LS138 address decoder

interrupts

8254

8259A

8255A

8279

8237 and 8272A

8251A

RS-232C

memory

including controllers

minimal 8086 system

displaying contents of CX register

IBM PC motherboard

credits