ANTIC Pinout Diagram

A vector graphic pinout is also available in Encapsulated PostScript format.

Key

• A0-A15: Memory address bus
• D0-D7: Memory data bus
• AN0-AN2: CTIA/GTIA bus (data type unknown)
• Vss: Ground (?)
• LP: Light pen trigger (?)
• RNMI: Reset button input (?)
• NMI: Non-maskable interrupt signal to CPU
• REF: Chip select (?)
• HALT: Signal to CPU
• R/W: Read/write direction
• RDY: Memory ready flag to CPU
• Vcc: +5V power
• Ø2: Clock in (?)
• Ø0: Clock in (?)
• F0O: (unknown)
• RST: Resets ANTIC

Note: I have no confirmation of the above descriptions. This is just my best educated guess, using my knowledge of microcomputer design, the function of the ANTIC processor, and the interaction between the custom IC's.

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