## **IMPORTANT UPDATE**

On the 20th of August 2022, Martin surprisingly released a new version of this documentation. While this fork will try to incorporate the changes, one important footnote that got added is the following:

> I am homeless in [Hamburg](https://problemkaputt.de/homeless.htm), please help me out!

The authors of this fork thought that this deserves more than a footnote, hence this notice here.

## Home

This is a conversion/edition of Martin "nocash" Korth's Playstation specs document originally hosted at [https://problemkaputt.de/psx-spx.htm](https://problemkaputt.de/psx-spx.htm). See [https://github.com/psx-spx/psx-spx.github.io#readme](https://github.com/psx-spx/psx-spx.github.io#readme) for more details.<br />
You can also download this website as a [single-page pdf](psx-spx.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 PSX.Dev Discord Server](https://discord.gg/QByKPpH).

[Memory Map](memorymap.md)<br/>
[I/O Map](iomap.md)<br/>
[Graphics Processing Unit (GPU)](graphicsprocessingunitgpu.md)<br/>
[Geometry Transformation Engine (GTE)](geometrytransformationenginegte.md)<br/>
[Macroblock Decoder (MDEC)](macroblockdecodermdec.md)<br/>
[Sound Processing Unit (SPU)](soundprocessingunitspu.md)<br/>
[Interrupts](interrupts.md)<br/>
[DMA Channels](dmachannels.md)<br/>
[Timers](timers.md)<br/>
[CDROM Drive](cdromdrive.md)<br/>
[Controllers and Memory Cards](controllersandmemorycards.md)<br/>
[Pocketstation](pocketstation.md)<br/>
[Serial Port (SIO)](serialportsio.md)<br/>
[Expansion Port (PIO)](expansionportpio.md)<br/>
[Memory Control](memorycontrol.md)<br/>
[Unpredictable Things](unpredictablethings.md)<br/>
[CPU Specifications](cpuspecifications.md)<br/>
[Kernel (BIOS)](kernelbios.md)<br/>
[Arcade Cabinets](arcadecabinets.md)<br/>
[Cheat Devices](cheatdevices.md)<br/>
[PSX Dev-Board Chipsets](psxdevboardchipsets.md)<br/>
[Hardware Numbers](hardwarenumbers.md)<br/>
[Pinouts](pinouts.md)<br/>
[About &amp; Credits](aboutcredits.md)<br/>
[CDROM Video CDs (VCD)](cdromvideocdsvcd.md)<br/>
[CDROM Internal Info on PSX CDROM Controller](cdrominternalinfoonpsxcdromcontroller.md)<br/>