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== UTL-CPU-01 testpoints ==
{| class="wikitable" border="1"
|-
! number
! name (TWL testpoint)
! voltage standard
! comment
|-
| TP1
| EXTB+
| ?
|
|-
| TP2
| VIN
| ~5V DC
| External charger power input
|-
| TP3
| Rosc
| ?
| ?
|-
| TP4
| RICHG?
| ?
| Recharge?
|-
| TP5
| GND
| (GND)
| ground (near external charger connector)
|-
| TP6
| V12
| 1.2V power rail
| CPU-TWL core voltage
|-
| TP7
| BT+
| battery +
| at 2-pin power connector to UTL-SUB-01
|-
| TP8
| VDET-
| ?
| ?
|-
| TP9
| DET
| ?
| ?
|-
| TP10
| V18
| 1.8V power rail
| Various I/O and core voltage (incl. RTC)
|-
| TP11
| ORANGE
| 3V3?
| Charging indicator
|-
| TP12
| VDD10?
| 10V power rail
| For LCDs
|-
| TP13
| V33
| 3.3V power rail
| Various I/O and core voltage
|-
| TP14
| GND
| (GND)
| ground (near PMIC)
|-
| TP15
| B+
| ?
| battery + ?
|-
| TP16
| VDD-5?
| -5V power rail
| For LCDs
|-
| TP17
| PVDD
| ?
| ?
|-
| TP18
| VDD5?
| 5V power rail
| For LCDs
|-
| TP19
| ?
| ?
| (to R7 or R104)
|-
| TP20
| BLA1?
| ?
| ?
|-
| TP21
| ?
| ?
| (to D6)
|-
| TP22
| Y-?
| ?
| touchscreen
|-
| TP23
| BLA2?
| ?
| ?
|}
[more TODO]
== UTL-SUB-01 testpoints ==
{| class="wikitable" border="1"
|-
! number
! name (TWL testpoint)
! voltage standard
! comment
|-
| TP1
| ?
| ?
| to TH1 component
|-
| TP2
| GND
| (GND)
| ground
|-
| TP3
| P06
| 3V3?
| D-pad up
|-
| TP4
| P04
| 3V3?
| D-pad right
|-
| TP5
| P05
| 3V3?
| D-pad left
|-
| TP6
| P07
| 3V3?
| D-pad down
|-
| TP7
| PWSW
| ?
| raw powerbutton input (to PMIC and BPTWL)
|-
| TP8
| RED
| open collector (at cathode)
| Battery low LED (DL1)
|-
| TP9
| YELLOW
| 3V3? (at anode)
| WiFi indicator LED (DL4)
|-
| TP10
| BLUE
| open collector (at cathode)
| Power on/good LED (DL2)
|-
| TP11
| ORANGE
| 3V3? (at anode)
| Charging indicator (DL3)
|-
| TP12
| VDD42
| 4.2V power supply
| Power supply for TP8/TP10 LEDs
|}