The Intel Hornet chip

Archived 2013-12-08
This page has been archived and some links may not work correctly anymore. No updates of this page will be done anymore.

This article is related to the Palmtops HP 100LX, 200LX, 1000CX and OmniGo 700LX. The 95LX has a different CPU.

The Hornet chip (CPU) and block diagram

The heart of the 100LX/200LX/1000CX/OG700LX is the Intel Hornet chip. It is an embedded PC, i.e. it contains the Intel 80186 CPU and all necessary interfaces. Here is some info about the Hornet chip:

Block diagram (PDF, 10kB)

Hornet Pinout (PDF, 37 kB)

Intel data sheet about the 80C186 by Larry Bates (PDF, 400kB)


See also: Tutorial: Disassembly of a 200LX

Do you like to support me?

Dear fellow Palmtopper!

If you like, you may reward me for the work I put into this website with a donation.


For a donation in US$:

For a donation in €:

Your donation, even if it's just a single USD, will help me to:

  • finance the server that hosts the site
  • justify time I spend with maintaining the site and do not spend with earning money otherwise (wife is watching! ;D)
  • just continue to be motivated :)

Since my company "hermocom" does not exist for many years anymore, I am now spending my spare time and private money for all of this. Thank you very much! 🙂

Yours truly,
Daniel Hertrich