Z88 Developers website

Happy new year to all the Z88 veterans!
I just wanted to post my latest Z88 hardware try which is unfortunately a failure… I presume you dont know what is the UKC84/00A.

It is a Z80 compatible clone but running froma 16 bits RISC architecture. It is 20% faster than a classic Z8400 (the CMOS Z80) at the same speed. It is up to 30% is the special KC80 which seems to be compatible with the Z88 because it works only in IM1 (interruption mode 1, the Z88 mode). So, I unsoldier the Z80 from the motherboard and fitted the UKC84/00A in a socket. Unfortunately, the Z88 never wanted to boot both in Z80 and KC80 mode. I presume it is a problem of timings… Lots of japanes people have replaced their MSX processor with this one and observed efficient overclocking.

This entry was posted on Friday, January 18th, 2008 at 4:15 am and is filed under Latest news. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.