Difference between revisions of "Machine Type Register"
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(Created page with "{{NextRegister |Number=03 |Readable=No |Writable=Yes }} Only valid in IPL or config mode. {| class="wikitable" ! Bit ! Function |- | 7 || Lock Timing |- | 6-4 ||...") |
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| Line 3: | Line 3: | ||
|Readable=No | |Readable=No | ||
|Writable=Yes | |Writable=Yes | ||
| + | |ShortDesc=Identifies timing and machine type. | ||
}} | }} | ||
Only valid in [[IPL]] or config mode. | Only valid in [[IPL]] or config mode. | ||
| Line 12: | Line 13: | ||
| 7 || Lock Timing | | 7 || Lock Timing | ||
|- | |- | ||
| − | | 6-4 || Timing. 000-001: ZX | + | | 6-4 || Timing. 000-001: ZX 48k; 010: ZX 128k; 011: ZX +2/+3e; 100: Pentagon. |
|- | |- | ||
| 3 || Reserved | | 3 || Reserved | ||
Revision as of 20:01, 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 48k; 010: ZX 128k; 011: ZX +2/+3e; 100: Pentagon. |
| 3 | Reserved |
| 2-0 | Machine type. 000: Config mode; 001: ZX 48k; 010: ZX 128k; 011: ZX +2/+3e; 100: Pentagon. |