[Coco] 7 chip 6809 computer

[embsys dev]

Not cycle accurate, but **40** MHZ clock!
http://opencores.org/project,6809_6309_compatible_core
A verilog, vendor independent, no cycle accurate MC6809/HD6309 compatible
processor core.
- Execute all implemented opcodes
- Allow asnychronous memories
- >40 MHz clock

On Wed, Feb 25, 2015 at 5:34 PM, embsys dev <embsysdev at gmail.com> wrote:

> http://opencores.org/project,system09
>
> 6809 System On a Chip that emulates the SWTPc 6809. Project page with
> revision history can be found at
> http://members.optusnet.com.au/jekent/system09 . Runs Flex9 which can be
> found at the Flex Users Group .
>
> Features
> - 6809 instruction compatible
> - 6850 compatible ACIA/UART (57.6 KBaud)
> - Hardware Trap Logic
> - Dual 8 bit I/O port
> - Simple timer
> - 80 x 25 character Video Display with colour attributes
> - Compact Flash interface
> - PS/2 Keyboard Interface
> - SYS09BUG Monitor ROM with Video driver
> - Dynamic Address Translation supports up to 1Mbyte of RAM
> - Fits in 300KGate Spartan IIe
> - Uses Xilinx Block RAM for monitor ROM and VDU memory.
> - Optional NOICE ROMs
>
>
>
>