102
edits
Changes
I have a top-packaged RTC on one unit and a bottom-packaged RTC on another, overall prevalence of either is TBD, but the bottom one is easier to probe so it gets priority
Line 78:
Line 78:
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−== Pinout (Bottom/Unpopulated, 5x7) ==
+== Pinout ==
Counter-clockwise from the top-left dot:
Counter-clockwise from the top-left dot:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
−! Pin number
+! Pin number (Bottom, 5x7)
+! Pin number (Top, 6x6)
! Name
! Name
! Description
! Description
|-
|-
| 01
| 01
+| ?
| crystal 1
| crystal 1
|
|
|-
|-
| 02
| 02
+| ?
| GND
| GND
|
|
|-
|-
| 03
| 03
+| ?
| Reset?
| Reset?
| TP144. Acts like a reset when pulled down using a 3.3kohm resistor. R677 can be severed to disconnect the signal from the SMC+RTC to the SoC.
| TP144. Acts like a reset when pulled down using a 3.3kohm resistor. R677 can be severed to disconnect the signal from the SMC+RTC to the SoC.
|-
|-
| 04
| 04
+| ?
| VCC?
| VCC?
| Goes to a power plane on the PCB
| Goes to a power plane on the PCB
|-
|-
| 05
| 05
−|
+| ?
+| ?
| TP146, trace goes near Bluetooth connector
| TP146, trace goes near Bluetooth connector
|-
|-
| 06
| 06
−|
+| ?
+| ?
| TP143, directly to SoC
| TP143, directly to SoC
|-
|-
| 07
| 07
−|
+| ?
+| ?
| TP175, to SMC
| TP175, to SMC
|-
|-
| 08
| 08
+| ?
| EXI MISO?
| EXI MISO?
| TP176? directly to SoC?
| TP176? directly to SoC?
|-
|-
| 09
| 09
+| ?
| EXI MOSI
| EXI MOSI
| Device in, Wii U out
| Device in, Wii U out
|-
|-
| 10
| 10
+| ?
| EXI CS?
| EXI CS?
| TP102, directly to SoC
| TP102, directly to SoC
|-
|-
| 11
| 11
−|
+| ?
+| ?
| directly to SoC? Has an in-line resistor
| directly to SoC? Has an in-line resistor
|-
|-
| 12
| 12
+| ?
| GND
| GND
|
|
|-
|-
| 13
| 13
+| ?
| EXI CLK
| EXI CLK
| TP101
| TP101
|-
|-
| 14
| 14
+| ?
| NC
| NC
|
|
|-
|-
| 15
| 15
+| ?
| ?
| ?
| TP141, to transistors/power stuff?
| TP141, to transistors/power stuff?
|-
|-
| 16
| 16
+| ?
| ?
| ?
| TP149, to transistors/power stuff?
| TP149, to transistors/power stuff?
|-
|-
| 17
| 17
+| ?
| ?
| ?
| TP147, to transistors/power stuff?
| TP147, to transistors/power stuff?
|-
|-
| 18
| 18
+| ?
| ?
| ?
| TP9, Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v), also connected to SMC
| TP9, Power Button (active low/pullup, pressed=0.0v, not pressed=3.3v), also connected to SMC
|-
|-
| 19
| 19
+| ?
| ?
| ?
| TP148, to transistors/power stuff?
| TP148, to transistors/power stuff?
|-
|-
| 20
| 20
+| ?
| VCC?
| VCC?
|
|
|-
|-
| 21
| 21
+| ?
| ?
| ?
| TP145, to SMC
| TP145, to SMC
|-
|-
| 22
| 22
+| ?
| ?
| ?
|
|
|-
|-
| 23
| 23
+| ?
| VCC backup batt
| VCC backup batt
|
|
|-
|-
| 24
| 24
+| ?
| crystal 2
| crystal 2
|
|
|}
|}