Vr 4122 Pinout/Datasheet?

I plan on doing some mods to my Vadem/Mainstreet/Pinax C-1050 and would like to know if anybody has a datasheet with pinout, and possibly interface notes other than to an LCD/vid controller. All the ones I have found are for paying subscribers.... Thanks!

You want schematics of a VR4000.

You'll have to go to NEC OEM or to MIPS themselves for the bus archietecture - and that sort of thing.

Oh... alrighty. I'm just trying to find the serial connection line to the processor/IO bus. That darned proprietary serial connector really bugs me :-P

Wouldn't it be a question of just creating a converter and / or soldering a new connector onto the main board with appropriate terminals.... why do you need to trace it back to the CPU?

Objectively curious

I did find some pin-out specs for the VR4xxx chips from google in the past. Some folks actually modded 2~3 resistor to overclock change the clock speed a bit.

For serial, you can do as C:amie suggested. The travel dock is really a physical adapter, and I doubt it has any circuitry inside it. So you should be able to get the RX/TX pins, Vcc, GND etc and mod a standard physical serial port from there.

Yes, I am going to reverse engineer the serial cable, as well as ... play with the clock speed :-) It was successful on my E-125, and I'd love for my Clio to be the world's fastest :-D