On 7/24/2006 at 3:02 AM woodelf wrote:
I was planning to use generic 2901's and LS
parts other than PROM.
Ripple carry for the ALU is used since this is only 5 slices. Since I am
using a 6809 style clock I hope to get about 1.5 Mhz with the system
with a non-pipelined ROM.
Are you doing this to explore old 4-bit bipolar slice logic or to design
your own instruction set? The later 29Cxxx logic seems to be easier to
work with--e.g. the 29C116 is a 16-bit slice that in addition to being
CMOS, reduces the package count considerably.
Pick up a copy of Mick & Brick, regardless. A good read for
this type of undertaking!