Difference between revisions of "Machine Type Register"
From SpecNext official Wiki
| Line 13: | Line 13: | ||
| 7 || Lock Timing | | 7 || Lock Timing | ||
|- | |- | ||
| − | | 6-4 || Timing. 000-001: ZX 48k; 010: ZX | + | | 6-4 || Timing. 000-001: [[ZX Spectrum]] 48k; 010: [[ZX Spectrum 128]]; 011: [[ZX Spectrum +3e]]; 100: [[Pentagon]]. |
|- | |- | ||
| 3 || Reserved | | 3 || Reserved | ||
|- | |- | ||
| − | | 2-0 || Machine type. 000: Config mode; 001: ZX 48k; 010: ZX | + | | 2-0 || Machine type. 000: Config mode; 001: [[ZX Spectrum]] 48k; 010: [[ZX Spectrum 128]]; 011: [[ZX Spectrum +3e]]; 100: [[Pentagon]]. |
|} | |} | ||
Revision as of 20:03, 14 August 2017
| Number | 03 |
|---|---|
| Readable | No |
| Writable | Yes |
| Short Description | Identifies timing and machine type. |
Only valid in IPL or config mode.
| Bit | Function |
|---|---|
| 7 | Lock Timing |
| 6-4 | Timing. 000-001: ZX Spectrum 48k; 010: ZX Spectrum 128; 011: ZX Spectrum +3e; 100: Pentagon. |
| 3 | Reserved |
| 2-0 | Machine type. 000: Config mode; 001: ZX Spectrum 48k; 010: ZX Spectrum 128; 011: ZX Spectrum +3e; 100: Pentagon. |