We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

APU Oscillator

From SnesLab

Revision as of 17:11, 18 August 2024 by Xetheria (talk | contribs) (S-DSP is not connected to MCK so it has to be getting its clock from the APU OSC)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to: navigation, search

The APU oscillator (X2) is in region 3C of the jwdonal schematic

The APU oscillator (X2) is clocked at 24.6 MHz, slightly faster than the master clock.

Side 1 is XTALO, connected to pin 45 of the S-DSP.
Side 2 is XTALI, connected to pin 46 of the S-DSP.

XTAL stands for "crystal." It does not clock the S-SMP directly.

See Also

OSC

References

http://problemkaputt.de/fullsnes.htm#snestimingoscillators
Figure 2-22-1 on page 2-22-2 of the official Super Nintendo development manual

Retrieved from "https://sneslab.net/mw/index.php?title=APU_Oscillator&oldid=20392"