feeding data to LPC chip using serial connection

Thread Starter


Joined Aug 11, 2009
Good day

I am Angelo, and new to this forum.
I am a big fan of speech synthesis, big enough to decide
to launch myself into the world of circuits. There was
this question about the possibility of a project I had in mind
eventually when I know enough about all this.

Is it possible to create a (simple) circuit board containing a form
of connection to the serial port of a pc, a TI TMS5200 LPC chip
and audio output means (amp/speakers), and pipe LPC data
to the TMS5220 chip through terminal software ?

As I understood, the TMS5200 used a PROM called TMS6100
which contained lpc data to be piped to the TMS5220 chip.

Documentation on the TMS5200 is way too hard for me still, but it
mentions that it can read data from something else than the TMS6100
which sounds hopeful.

For those not familiar and curious about those two gems, please
check out http://en.wikipedia.org/wiki/Texas_Instruments_LPC_Speech_Chips

The manuals can be found at:

Thank you for your time if you gotten that far.


Joined Jan 8, 2009
You could try using LPC2138 which is a 32bit chip and can have USB support to transmit audio faster compared to the serial port. What you are trying to achieve is not clear. LPC2138 comes also as a PLCC package.

Thread Starter


Joined Aug 11, 2009
Hello and thank you for your reply.

I aim to one day be able to pass LPC data to the TMS5220 chip
so I can synthesize speech to a speaker. I thought the simplest way
would be to connect a board to a serial port of a pc, and pass
data through a term program. I am actually not even sure it is
doable. My choice of using the (antique) TMS5220 is purely nostalgic.