Communications Register Unit
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Well-known base addresses
CRU addresses are usually configurable on the device board using DIP switches. Some addresses are well-known for specific devices.
| Address | System | Device |
|---|---|---|
| 0800 | all | Super Space cartridge |
| 0900 | all | |
| 0A00 | all | |
| 0B00 | all | |
| 0C00 | all | |
| 0D00 | all | |
| 0E00 | all | |
| 0F00 | all | |
| 1000 | all | |
| 1100 | all | |
| 1200 | all | |
| 1300 | all | |
| 1400 | all | |
| 1500 | all | |
| 1600 | all | |
| 1700 | all | |
| 1800 | all | |
| 1900 | all | |
| 1A00 | all | |
| 1B00 | all | |
| 1C00 | all | |
| 1D00 | all | |
| 1E00 | all | |
| 1F00 | all | P-Code card |
| 2000 | 99/8 | |
| 2100 | 99/8 | |
| 2200 | 99/8 | |
| 2300 | 99/8 | |
| 2400 | 99/8 | |
| 2500 | 99/8 | |
| 2600 | 99/8 | |
| 2700 | 99/8 |