Description
ANTIC ("Alpha-Numeric Television Interface Circuit") is a microprocessor
dedicated to the television display. It is a true microprocessor; it has an
instruction set, a program (called the display list), and data. The display
list and the display data are written into RAM by the 6502. ANTIC retrieves
this information from RAM using direct memory access (DMA). It processes the
higher level instructions in the display list and translates these instructions
into a real-time stream of simple instructions to GTIA.
Catalogue numbers
CO12296 NTSC 400/800 (7bit/shorter ref?)
CO14887
CO21698 PAL XL/XE (8bit/longer)
CO21697 NTSC XL/XE (8bit/longer)
Pinout
| A0-A15 | memory address bus |
| D0-D7 | memory data bus |
| AN0-AN2 | GTIA data output |
| Vss | ground |
| /LP | light pen input |
| /RNMI | NMI input |
| /NMI | NMI output |
| /REF | refresh output |
| /HALT | halt cpu output |
| R/W | read/write (HI-read, LO-write) |
| RDY | memory ready output |
| Vcc | +5V power |
| Ø2 | phase 2 clock input (also marked as PHI2) |
| Ø0 | phase 0 clock output |
| F0O | fast phase 0 input |
| /RST | reset input |
Back (c) 1998-2004 Jindroush Last modified: Fri Mar 22 09:57:10 2002
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