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APU Oscillator
From SnesLab
The APU oscillator (X2) is in region 3C of the jwdonal schematic
The APU oscillator (X2) is clocked at 24.6 MHz. Side 1 is XTALO and is connected to pin 45 of the S-DSP. Side 2 is XTALI and is connected to pin 46 of the S-DSP.
It does not clock the S-SMP.
See Also
References
- http://problemkaputt.de/fullsnes.htm#snestimingoscillators
- Figure 2-22-1 on page 2-22-2 of the official Super Nintendo development manual