Editing CPU

Tachyon is the codename for the main CPU of the PSP.

Tachyon has one primary CPU core which is responsible for running the XMB and games, and a second CPU core which implements the audio and video decoding functionality of the PSP.

[[File:PSP CXD2962GG.jpg|thumb|left|PSP CXD2962GG]]<br>
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== 333 MHz MIPS R4000 ==

=== Specifications ===

*Sony CXD2962GG CPU
*Based on MIPS R4000 32-bit Core
*Little-endian
*90 nm Semiconductor CMOS Process
*1–333 MHz (set at 222 MHz by default) @ 1.2 V
*16 kB Instruction Cache / 16 kB Data Cache
*SiP:
**32 MB eDRAM @ 2.6 Gbit/s
**Embedded FPU
*Embedded Vector FPU @ 3.2 GFLOPS

== Main CPU "SC" ==

== Mobile Engine "ME" ==
The Mobile Engine ("ME") is a second MIPS based CPU core that was not directly accessible by licensed developers. Instead, Sony runs code on the ME to facilitate decoding audio and video assets, along with the help of more specialized hardware like the Virtual Mobile Engine and 

The ME runs at the same clock frequency as the main CPU core.

See [https://www.techinsights.com/products/ctr-0501-001 Sony CXD2962GG Processor with Embedded DRAM - Chiptease Analysis Report].