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output_port [2016/05/22 18:37] ex_writer |
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| - | ====== Output Ports ====== | ||
| - | ^ Port Number (hex) ^ Function ^ Notes ^ | ||
| - | | 0 | Color Register 0 (Right) | | | ||
| - | | 1 | Color Register 1 | | | ||
| - | | 2 | Color Register 2 | | | ||
| - | | 3 | Color Register 3 | | | ||
| - | | 4 | Color Register 0 (Left) | | | ||
| - | | 5 | Color Register 1 | | | ||
| - | | 6 | Color Register 2 | | | ||
| - | | 7 | Color Register 3 | | | ||
| - | | 8 | Low/High Resolution | aka Consumer/Commercial mode | | ||
| - | | 9 | Horizontal Color Boundary, BG Color || | ||
| - | | A | Vertical Blank Register || | ||
| - | | B | Color Block Transfer || | ||
| - | | C | [[Magic Register]] || | ||
| - | | D | Interrupt Feedback Register || | ||
| - | | E | Interrupt Enable and Mode || | ||
| - | | F | Interrupt Line || | ||
| - | | 10 | Master Oscillator || | ||
| - | | 11 | Tone A Frequency || | ||
| - | | 12 | Tone B Frequency || | ||
| - | | 13 | Tone C Frequency || | ||
| - | | 14 | Vibrato/Tremolo Register || | ||
| - | | 15 | Tone C Volume, Noise Modulation Control || | ||
| - | | 16 | Tone A Volume, Tone B Volume || | ||
| - | | 17 | Noise Volume || | ||
| - | | 18 | Sound Block Transfer || | ||
| - | | 19 | Expand Register || | ||
| - | |||
| - | [NM:106, 143] | ||
