Re: EPM9320 CPLDs

2016-05-06 Thread Simon Garstin
I suppose you could design a Homebrew SAM Coupe with only a handful of components ? Z80 CPU (possibly Z84C0010PEC 10MHz) 512K SRAM EPROM EPM9320 Glue Logic, Video logic, Memory decoding etc MB8877+WD9216 FDCs ?? These may be compatible with original SAM Disk Drives ? 8255 PIO for IDE interface (Ha

EPM9320 CPLDs

2016-05-05 Thread Leslie Anderson
Hi. I've got some EPM9320 CPLD PLCC84 (320 Macrocells) and wondered... is it possible to put the Sam Coupe ULA onto it ? How many macrocells would it take ? It would be quite interesting to pop the 'Guts' of a SAM Coupe onto a cheap CPLD either for designing a homebrew SAM or replacing the origi