PSP Technical Documentation updated

Source PS2Dev

Groepaz has update his great PSP Technical Documentation. The latest version includes details on PRX sections, system registry, talkman information, flash pinouts, and various other goodies. If you want to know about the internals of the PSP, this is the place to look. Grab it from hitman's web site here --> http://hitmen.c02.at/html/psp_docs.html

I see that this has details on PRX sections. Could this perhaps help unlock 2.50 & 2.60 required games to play on 1.5 PSP's?