Difference between revisions of "Machine Type Register"
From SpecNext official Wiki
| Line 1: | Line 1: | ||
{{NextRegister | {{NextRegister | ||
| − | |Number=03 | + | |Number=$03 |
|Readable=No | |Readable=No | ||
|Writable=Yes | |Writable=Yes | ||
Revision as of 01:25, 15 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. |