Historic Documents
Contents
Historic Technical Documents
This collection of historical documents centers on the Atari 7800 and its hardware, with many originating from the late Atari historian Curt Vendel. Some materials were publicly available through his Atari Museum website, while others have been preserved from his private archives and are now being shared more widely.
In no particular order:
TIA-Maria_Gate-Level_Logic_Diagrams.pdf
This document contains various gate level diagrams for the different sections of the planned TIA-Maria hybrid chip.
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7800_Maria_Specs.pdf
A five-page document outlining Maria's technical specs and architecture. This appears to be a high-level introduction to the Maria chip for customers.
- Note 1: Page 1 mentions a version of Maria (number 1722) intended for 680X0 series processors.
- Note 2: Page 5 describes the CTRL register's test/forbidden DMA mode as “Does not assert HALT,” a detail not known to be documented elsewhere.
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Minnie Subsystem Top-Level Specification – GCC-1730
The top-level specification for the planned "Minnie" in-cart sound chip.
→ See: The 7800 Minnie sound chip
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MiniGumby Sound Synthesis – Analog Output Section Specification – GCC-1730
The analog output section specification for the same planned "Minnie" chip.
→ See: The 7800 Minnie sound chip
