Switch the system clock frequency.
- Parameters
-
| mode | Target clock mode (26 MHz or 28 MHz) |
Calls the BIOS entry at 0x6000320. This triggers a partial hardware reset via SMPC command. Processing time is ~130 ms.
- Hardware Side Effects:
| Affected | Result |
| VDP1, VDP2, SCSP | Registers reset - must be re-initialized |
| DRAM | Content destroyed |
| Slave SH2 | Stopped (OFF) |
| Master SH2 FRT, SCI | Reset (enters standby during switch) |
| SDRAM, CD block | Preserved |
- Warning
- After calling this function you must re-initialize VDP1, VDP2 and SCSP. The TV mode must be set quickly to avoid sync glitches.
- See also
- GetClockMode()
