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S-PPU1: Difference between revisions

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[[File:PPU1-with-boxes-thumb.jpg|thumb|S-PPU1 die shot with regions numbered]]
'''S-PPU1''' is the first of the two PPUs in 2chip consoles.  It has part number 21322.  Little is known about how S-PPU1 works; for most regions of the die there is only speculation about their function.
'''S-PPU1''' is the first of the two PPUs in 2chip consoles.  It has part number 21322.  Little is known about how S-PPU1 works; for most regions of the die there is only speculation about their function.
[[File:PPU1-with-boxes-thumb.jpg|thumb|S-PPU1 die shot with regions numbered]]


=== Legend ===
=== Legend ===


* 1 & 2 - OAM
* 1 & 2 - [[OAM]]
* 5 & 6 - line buffer
* 5 & 6 - [[Sprite Line Buffer]]
* 10 - combining sprite + layer?
* 10 - combining sprite + layer?
* 12 - registers?
* 12 - registers?


=== See Also ===
=== See Also ===
* [[S-PPU2]]
* [[S-PPU2]]
* [[Mode 7]]


=== References ===
=== References ===
* https://forums.nesdev.org/viewtopic.php?p=279840#p279840
* https://forums.nesdev.org/viewtopic.php?p=279840#p279840
* paragraph 22.2 on [https://archive.org/details/SNESDevManual/book1/page/n97 page 2-22-1 of Book I] of the official Super Nintendo development manual


[[Category:SNES Hardware]]
[[Category:SNES Hardware]]

Latest revision as of 19:45, 12 August 2024

S-PPU1 die shot with regions numbered

S-PPU1 is the first of the two PPUs in 2chip consoles. It has part number 21322. Little is known about how S-PPU1 works; for most regions of the die there is only speculation about their function.

Legend

See Also

References