Path: utzoo!attcan!uunet!super!udel!gatech!ncsuvx!mcnc!ecsvax!cjl From: cjl@ecsvax.uncecs.edu (Charles Lord) Newsgroups: comp.sys.tandy Subject: Re: Old peripherals Summary: Model 100 Video/disk interface Keywords: coco 100 102 200 disk video controller Message-ID: <5429@ecsvax.uncecs.edu> Date: 27 Sep 88 03:56:48 GMT References: <284@pte.UUCP> Sender: uucp@super.ORG Organization: Triangle R&D Corp,RTP,NC Lines: 14 The expansion interface for the Model 100 was a z-80 based single board computer with 780 disk controller and ?6845? (I believe) CRTC. It used a parallel 8-bit bus to communicate with the 80C85 in the M100. If someone got the schematic to the board, figured out the addressing scheme, wrote a new driver, and added a parallel keyboard in place of the M100, it would be a standalone computer. Anyone want to write the CP/M Bios? -- Charles Lord ..!decvax!mcnc!ecsvax!cjl Usenet Cary, NC cjl@ecsvax.uncecs.edu Bitnet #include#include