Subject: 1.12) What is the internal layout of the 8-bit Atari?
ASCII art by Thomas Havemeister.
(art removed and placed in an attached txt file)
NOTES
* RAM: 400/800: 8K, 16K or 48K standard
600XL:16K standard
1200XL/800XL/65XE/800XE/XEGS: 64K standard
130XE:128K standard
* ROM: 400/800:10K OS, 1200XL:16K OS, all others:16K OS + 8K Atari BASIC
* CPU: 400/800:6502B, all others:6502C
* 800 includes two Cartridge Slots, all others include one
* early release 400/800 have CTIA instead of GTIA
* 400/800 have 4 Controller Ports, all others have 2
* PBI is on 600XL/800XL only
* ECI is on 130XE/800XE/many PAL 65XE only
* Some late XE's use a 68B21 for PIA; PIA is 6520/6520A on all others
The following are most of the team who originally designed the 400/800.
Credit for providing this information for the FAQ goes to:
Doug Neubauer (by way of James Finnegan), Jerry Jessop, Scott Emmons
VLSI HARDWARE:
Jay Miner - Creator and System architect, VSLI manager
Steve Mayer - Also one of the creators - Partner in "Cyan Engineering"
Lawrence D. Emmons - Also one of the creators - Partner in "Cyan
Engineering"
Joe Decuir - ANTIC and system and creator
???A French guy - ANTIC logic designer
George McLeod - CTIA and GTIA logic design
Doug Neubauer - POKEY logic design
Mark Shieu - POKEY chip design
Steve Stone - POKEY layout design
Steve Smith - Technician for ANTIC and GTIA
Delwin Pearson - Technician for POKEY