WiiUBrew

Hardware/Testpoints

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< Hardware
Revision as of 22:45, 19 March 2023 by Shinyquagsire23 (talk | contribs) (lets have a page with all of the testpoints)
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General

The Wii U motherboard exposes several test points, primarily on the bottom of the motherboard (CPU heatsink facing down).

EXI0

  • TP101 - CLK
  • TP176 - MISO (Device out, Wii U in)
  • Test point between TP100 and TP176 - MOSI (Device in, Wii U out)

DEBUG

These pins are set to various 8-bit values to indicate the current stage of boot0.

  • TP50 - DEBUG0
  • TP51 - DEBUG1
  • TP52 - DEBUG2
  • TP53 - DEBUG3
  • TP55 - DEBUG4
  • TP54 - DEBUG5
  • TP48 - DEBUG6
  • TP49 - DEBUG7

Misc/Unk

  • TP102 - Not EXI0?
  • TP144 - Reset? Or functions like one when pulled down by a 3.3Kohm resistor.
  • TP127 - ARM/IOP power rail?
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