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A simple CP/M Z80 SBC without glue logic [message #6126]

Thu, 14 March 2019 08:20

plasmo
Messages: 916
Registered: March 2017
Location: New Mexico, USA

Senior Member

I have had leisure time to daydream while traveling and waiting. The recent discussion about Z80 design makes me thinking of a glue-less Z80 SBC consists of Z80, RAM ROM, and KIO. The KIO can do CF interface to provide CP/M capability and discrete to bank switch ROM, RAM and RAM banks. No glue logic necessary. It should be a simple, compact SBC for people not wanting to fool with CPLD, a 4-chip solution in 50mmX100mm pc board. What to do with all the extra pc board space. Thought?
Bill

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[Message index]

		A simple CP/M Z80 SBC without glue logic By: plasmo on Thu, 14 March 2019 08:20
		Re: A simple CP/M Z80 SBC without glue logic By: wsm on Thu, 14 March 2019 10:50
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Thu, 14 March 2019 11:09
		Re: A simple CP/M Z80 SBC without glue logic By: mikemac on Thu, 14 March 2019 16:39
		Re: A simple CP/M Z80 SBC without glue logic By: wsm on Thu, 14 March 2019 18:01
		Re: A simple CP/M Z80 SBC without glue logic By: etchedpixels on Fri, 15 March 2019 05:21
		Re: A simple CP/M Z80 SBC without glue logic By: wsm on Fri, 15 March 2019 08:47
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Fri, 15 March 2019 09:11
		Re: A simple CP/M Z80 SBC without glue logic By: etchedpixels on Fri, 15 March 2019 09:39
		Re: A simple CP/M Z80 SBC without glue logic By: wsm on Fri, 15 March 2019 10:15
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Sat, 16 March 2019 06:41
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Thu, 04 April 2019 05:34
		Re: A simple CP/M Z80 SBC without glue logic By: b1ackmai1er on Thu, 04 April 2019 06:29
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Thu, 04 April 2019 07:28
		Re: A simple CP/M Z80 SBC without glue logic By: etchedpixels on Thu, 04 April 2019 09:56
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Thu, 04 April 2019 13:58
		Re: A simple CP/M Z80 SBC without glue logic By: wsm on Thu, 04 April 2019 14:42
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Thu, 04 April 2019 18:19
		Re: A simple CP/M Z80 SBC without glue logic By: wsm on Thu, 04 April 2019 19:10
		Re: A simple CP/M Z80 SBC without glue logic By: etchedpixels on Fri, 05 April 2019 03:34
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Fri, 05 April 2019 05:44
		Re: A simple CP/M Z80 SBC without glue logic By: etchedpixels on Thu, 04 April 2019 09:49
		Re: A simple CP/M Z80 SBC without glue logic By: plasmo on Fri, 15 March 2019 09:03

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