External Synchronization: Difference between revisions

Latest revision as of 17:09, 12 August 2024

EXTSYNC is a mysterious signal sent to pin 26 of PPU1. It is tied to VCC. One theory is that it was supposed to allow the PPU to not have to generate the TV synchronization signals itself and have them input into it instead.

The EXTSYNC bit is the most significant bit of SETINI (2133h). The official Super Nintendo development manual recommends zeoring it.

References

Revision as of 23:19, 7 July 2023 (view source) Xetheria (talk \| contribs) m (Jeffythedragonslayer moved page EXTSYNC to External Synchronization: what the acronym expands to) ← Older edit		Latest revision as of 17:09, 12 August 2024 (view source) Xetheria (talk \| contribs) (shorten description)
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	'''EXTSYNC''' is a mysterious signal ~~that is~~ sent to pin 26 of [[PPU1]]. It is tied to [[VCC]]. One theory is that it was supposed to allow the PPU to not have to generate the TV synchronization signals itself and have them input into it instead.		'''EXTSYNC''' is a mysterious signal sent to pin 26 of [[PPU1]]. It is tied to [[VCC]]. One theory is that it was supposed to allow the PPU to not have to generate the TV synchronization signals itself and have them input into it instead.

	The EXTSYNC bit is the most significant bit of SETINI (2133h). The official Super Nintendo development manual recommends zeoring it.		The EXTSYNC bit is the most significant bit of SETINI (2133h). The official Super Nintendo development manual recommends zeoring it.