Motorola M68MM17 68B09

A work in progress! I've had this MM17 page showing the CMS9606 board. Need to get this fixed

This is a Motorola M68MM17 68B09 Single Board Computer. This is an Exorset board and a Motorola Design from 1979. So far I have a liitle information on the board but I'm pretty sure I can easily reverse engineer the board as it appears to be based on a Motorola reference design. I will need to disassemble the ROM.

6809 - The Motorola 6809 CPU
6850 - ACIA x2 (Asynchronous Communication Interface Adapter)
6840 - PIT (Programable Interface Timer)
6821 - PIA x2 (Parallel Interface Adapter)
27xx - EPROM (2716) U23
6116 - x3?, 2KB (2K x 8) Static ram
MC14411P - Bit Rate Frequency Generator

Memmap M68MM17 D1

My board differs from the manual. I have 2 PIAs and the location of everything is different.


Memmap -
0000 - CFFF - Available
D000 - D7FF - U30 - 2K ROM
D800 - DFFF - U22 - 2K  "
E000 - E7FF - U17 - 2K RAM
E800 - EFFF - I/O (PTM/ACIA/PIA)
       EC10 - EC13 - PIA
       EC14 - EC15 - ACIA 1
       EC18 - EC1F - PTM
       EC52 - EC55 - ACIA 2
F000 - F7FF - U36
F800 - F8FF - U48

Notes:
These are the memory location as factory delivered. Changes in Jumper positions
may change the start addresses of the devices.

Motorola M68MM17 68B09

Memmap M68MM17 D1

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