Ricoh 2C02 PPU
E491820
The Ricoh 2C02 PPU is the custom picture processing unit that generates the NES’s 2D graphics, including sprites, backgrounds, and color output.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ricoh 2C02 PPU canonical | 2 |
| NES PPU | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5079760 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ricoh 2C02 PPU Context triple: [Nintendo Entertainment System, graphicsProcessor, Ricoh 2C02 PPU]
-
A.
Sharp X68030
The Sharp X68030 is a high-end Japanese personal computer released in the early 1990s, known for its powerful Motorola 68030 CPU and advanced graphics and sound capabilities popular among enthusiasts and game developers.
-
B.
RCA 1802 microprocessor
The RCA 1802 microprocessor is an early CMOS-based 8-bit CPU notable for its low power consumption, radiation hardness, and use in spacecraft and embedded systems in the 1970s and 1980s.
-
C.
MOS Technology 6502
The MOS Technology 6502 is an influential 8-bit microprocessor introduced in the mid-1970s that powered many early personal computers and game consoles, including the Apple II, Commodore 64, and Nintendo Entertainment System.
-
D.
Motorola 6800 microprocessor
The Motorola 6800 microprocessor is an 8-bit CPU introduced in the mid-1970s that became influential in early microcomputer and embedded system designs.
-
E.
RISC II
RISC II is an early experimental reduced instruction set computer (RISC) processor developed at UC Berkeley that significantly shaped the design of later RISC architectures.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ricoh 2C02 PPU Target entity description: The Ricoh 2C02 PPU is the custom picture processing unit that generates the NES’s 2D graphics, including sprites, backgrounds, and color output.
-
A.
Sharp X68030
The Sharp X68030 is a high-end Japanese personal computer released in the early 1990s, known for its powerful Motorola 68030 CPU and advanced graphics and sound capabilities popular among enthusiasts and game developers.
-
B.
RCA 1802 microprocessor
The RCA 1802 microprocessor is an early CMOS-based 8-bit CPU notable for its low power consumption, radiation hardness, and use in spacecraft and embedded systems in the 1970s and 1980s.
-
C.
MOS Technology 6502
The MOS Technology 6502 is an influential 8-bit microprocessor introduced in the mid-1970s that powered many early personal computers and game consoles, including the Apple II, Commodore 64, and Nintendo Entertainment System.
-
D.
Motorola 6800 microprocessor
The Motorola 6800 microprocessor is an 8-bit CPU introduced in the mid-1970s that became influential in early microcomputer and embedded system designs.
-
E.
RISC II
RISC II is an early experimental reduced instruction set computer (RISC) processor developed at UC Berkeley that significantly shaped the design of later RISC architectures.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
picture processing unit
ⓘ
video display processor ⓘ |
| alsoKnownAs |
NES PPU
ⓘ
linked to:
Ricoh 2C02 PPU
|
| architecture | 2D graphics ⓘ |
| backgroundTileSize | 8x8 pixels ⓘ |
| busWidth | 8-bit ⓘ |
| colorEncoding | NTSC subcarrier modulation ⓘ |
| colorPaletteSize | 64 entries ⓘ |
| connectsTo |
CPU Ricoh 2A03
ⓘ
linked to:
Ricoh 2A03
|
| designedFor | tile-based graphics rendering ⓘ |
| frameRate | approximately 60 Hz ⓘ |
| function |
generates backgrounds
ⓘ
generates color video output ⓘ generates composite video signal ⓘ generates sprites ⓘ handles background scrolling ⓘ handles sprite evaluation ⓘ performs palette lookup ⓘ performs sprite fetching ⓘ performs tile fetching ⓘ |
| hasFeature |
background scrolling registers
ⓘ
sprite flipping ⓘ sprite priority over background ⓘ sprite zero hit flag ⓘ vertical blank interrupt flag ⓘ |
| introducedWith | original Famicom home console ⓘ |
| manufacturer | Ricoh ⓘ |
| masterClockFrequency | approximately 21.47727 MHz ⓘ |
| maxSpritesOnScreen | 64 ⓘ |
| maxSpritesPerScanline | 8 ⓘ |
| memoryType | separate PPU address space ⓘ |
| nameTableCount | 2 internal name tables ⓘ |
| nameTableMirroring | controlled by cartridge wiring ⓘ |
| onScreenColors | 25 colors approximately ⓘ |
| paletteRAMSize | 32 bytes ⓘ |
| patternTableSource | CHR ROM or CHR RAM on cartridge ⓘ |
| pixelClockFrequency | approximately 5.369318 MHz ⓘ |
| platform |
Famicom
ⓘ
linked to:
Nintendo Entertainment System
Nintendo Entertainment System ⓘ |
| region | NTSC ⓘ |
| scanlinesPerFrame | 262 ⓘ |
| spriteSizeOptions |
8x16 pixels
ⓘ
8x8 pixels ⓘ |
| successorVariant |
Ricoh 2C03 PPU
ⓘ
Ricoh 2C05 PPU ⓘ |
| usedIn |
Famicom (NTSC variants)
ⓘ
linked to:
Nintendo Entertainment System
Nintendo Entertainment System ⓘ |
| videoStandard | NTSC composite ⓘ |
| visibleResolution | 256x240 pixels nominal ⓘ |
| VRAMSize | 2 KB internal VRAM ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ricoh 2C02 PPU Description of subject: The Ricoh 2C02 PPU is the custom picture processing unit that generates the NES’s 2D graphics, including sprites, backgrounds, and color output.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ricoh 2C02 PPU