This is a conversion/edition of Martin "nocash" Korth's Playstation specs document originally hosted at https://problemkaputt.de/psx-spx.htm. See https://github.com/psx-spx/psx-spx.github.io#readme for more details.
You can also download this website as a single-page pdf.
To discuss the contents of this document, or hang out with likely minded people on development, hacking, and reverse engineering of Sony's first console, feel free to join the PSXDev Network Discord Server.
Graphics Processing Unit (GPU)
Geometry Transformation Engine (GTE)
Macroblock Decoder (MDEC)
Sound Processing Unit (SPU)
Controllers and Memory Cards
Serial Port (SIO)
Expansion Port (PIO)
PSX Dev-Board Chipsets
About & Credits
CDROM Video CDs (VCD)
CDROM Internal Info on PSX CDROM Controller