chibi-pc09/docs/prototype-1-specs.md

6309 Board Prototype #1 Specs

HD63C09 CPU @ 3MHz AS6C62256-55 SRAM (32KB) SST39SF010A-70 FLASH (32KB Used) PC16550 UART @ 1.8342MHz

Memory Map

Device	Location
FLASH	8000-FFFF
UART	7F00-7FFF
SRAM	0000-7EFF

Truth Table

A15	A14-A9	A8	Chip
H	x	x	FLASH
L	x	L	SRAM
L	H	H	UART