Atmel AT40k/94k Configuration Format Documentation

William Sealey Gosset · 2005-08-12T15:09:10+00:00

Summary This document describes the correlation between publicly documented logic, I/O, and routing resources within the Atmel AT40k/94k family of chips and bits in the bitstreams needed to program them. Our goal is to make this information available to the public without restriction on its use, for the purpose of creating automated tools which generate bitstreams.Statement of Public Knowledge The Knowledge encapsulated in this document was derived by formal scientific experimentation, using only information generally available to the public. Extreme care which has been taken to ensure that the process did not violate any copyright, trademark, trade secret, or patent statutes. No licensing contracts or non-disclosure agreements were entered into by the parties involved in this endeavor, nor did they have access to any confidential information. This document is part of the Public Domain; its authors surrender claim to copyright on it.Corrections If you find errors in this document, please correct them and add the date and a short description of the correction to the table below. This will assist in merging changes made in disjoint derivitaves. 2005.08.12 [gosset] Initial revisionBackground The Atmel AT40k Datasheet describes in great detail the resources available in the AT40k as well as the FPGA portion of the AT94k (which is functionally identical and uses the same binary configuration format). The configuration space used to control these resources consists of a collection of independent octets arranged in a sparse 24-bit address space. This document correlates those bits with the resources described in the Datasheet. The process of configuring the device consists of writing these octets into the configuration memory. Once the desired configuration octets are known, the procedures for loading them into configuration memory are well documented in Atmel Documents 1009 and 2313. Each data octet "D" has a 24-bit address,...

Aug 12, 2005 1 Replies

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"William Sealey Gosset" schrieb im Newsbeitrag news: snipped-for-privacy@nym.alias.net...

Way to go!

Atmels FPGA tools JUST SUCK

I still do have the FPSLIC starterkit download cable and even dongle laying aroung but never had much time. Well I started Atmel JBits library once, but that wasnt much finished, I may dig it out now.

I can verify your public document as I do happen to have the original document, what I have actually obtained without signing NDA :), sure to the bottom end that doesnt change anything.

I wonder if the soon to be announced FPSLIC-II has some new features as well or is just technology schrink and new package?

Antti PS

formatting link

I like wiki to edit online documents :)

PPS if you like I have one AT94K laying around (and conf memory for it too), I can send to you free or charge (the chip is older die revision without JTAG interface).

Atmel AT40k/94k Configuration Format Documentation

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