[sdiy] TI-99/4A chips?

[Eric Brombaugh]

On 09/25/2009 06:59 PM, jvastine wrote:
> If I recall correctly that was originally the system designed by Clive Sinclair and the first 2 models were the Sinclair ZX80&  ZX81. It was based on the Zilog Z80 processor, which can be used to do some intersting stuff. I don't these machines to have any real useful dsp or graphiics functionality, but there may be something that one could do with some of the components.

Errr.. Nope.

See here:

http://en.wikipedia.org/wiki/Texas_Instruments_TI-99/4A

It wasn't based on the Z-80, it used a proprietary processor that TI 
made. Had some pretty cool video processing for its day - had decent 
color handling, sprites and other little goodies. Sound came from an 
SN94624 - similar to the SN76489 (for a tie-in to all the noise/chiptune 
stuff we've been talking about recently).

Eric