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Color Computer 2 Memory Map
From CoCopedia - The Tandy/Radio Shack Color Computer Wiki
Overview
| Start address | End address | Size (KB) | Contents | |
|---|---|---|---|---|
| 0000 | 03FF | 1 | System Use | |
| 0400 | 05FF | 0,5 | Text screen memory | |
| 0600 | 7FFF | Free RAM (depending on use of graphics pages or DECB) | ||
| 0600 | 0BFF | 1,5 | Graphics page 1 | Pmode 3/4 page 1 |
| 0C00 | 11FF | 1,5 | Graphics page 2 | |
| 1200 | 17FF | 1,5 | Graphics page 3 | |
| 1800 | 1DFF | 1,5 | Graphics page 4 | |
| 0600 | 18CE | 4 | DECB Use (CONFLICT WITH GRAPHICS PAGES 1-4) | |
| 1E00 | 23FF | 1,5 | Graphics page 5 | Pmode 3/4 page 2 |
| 2400 | 29FF | 1,5 | Graphics page 6 | |
| 2A00 | 2FFF | 1,5 | Graphics page 7 | |
| 3000 | 35FF | 1,5 | Graphics page 8 | |
| 8000 | 9FFF | 8 | Extended BASIC ROM | |
| A000 | BFFF | 8 | COLOR BASIC ROM | |
| C000 | D800 | 6 | Disk BASIC ROM | |
| C000 | FEEF | 16 | Cartridge ROM | |
| FF00 | FFFF | 0,25 | Input/Output Area | |
Input/Output Area
| Start address | End address | Contents / Function |
|---|---|---|
| FF00 | FF1F | Peripheral Interface Adapter (PIA) 0 |
| FF00 | PIA0 data port A: Keyboard rows & joystick button | |
| FF01 | PIA0 control port A: Horizontal sync & interrupt control | |
| FF02 | PIA0 data port B: Keyboard columns | |
| FF03 | PIA0 control port B: Vertical sync control | |
| FF04 | FF1F | PIA0 mirrors |
| FF20 | FF3F | Peripheral Interface Adapter (PIA) 1 |
| FF20 | PIA1 data port A: sound/cassette/RS-232 output/input | |
| FF21 | PIA1 control port A: Cassette motor control | |
| FF22 | PIA1 data port B: VDG control | |
| FF23 | PIA1 control port B: FIRQ & sound control | |
| FF24 | FF3F | PIA1 mirrors |
| FF40 | FF5F | Diskette I/O usage |
| FF60 | FF7F | Miscellaneous external hardware control |
| FF80 | FFBF | Unused in CoCo 1 & 2 |
