Changes

Testpads (view source)

Revision as of 01:58, 5 March 2019

263 bytes added , 01:58, 5 March 2019

Cluster C pad 11 is a 1v8 power rail

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{| class=wikitable

! Pad # || Name || Type || Levels || Continuity || Frequency || Comment

+

|-

+

| 1 || || DBVDD || || || || from ALC5639 pin 43

|-

| 2 || D+ || USB-C || || || || Cluster B - 3

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| 3 || D- || USB-C || || || || Cluster B - 2

|-

−

| 4 || +3.3V || ?? || || || || from M92T36

+

| 4 || +3.3V || XRST || || || || from M92T36 pin 4

+

|-

+

| 5 || +3.3V || VSVR || || || || from M92T36 pin 6

+

|-

+

| 5(b) || VUSB || VB || || || || from M92T36 pin 9

|-

−

| 5 || ~~+3.3V~~ || ?? || || || || ~~from M92T36~~

+

| 6 || GND || || || || ||

|}

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| 1 || ?? || || 0-1.8V || || || No clue. This is definitely important, we just have no idea how. May need to interface with dock for comms.

|-

−

| 2 || UART-A RX || || 0-1.8V || || ||

+

| 2 || UART-A TX || || 0-1.8V || || ||

|-

−

| 3 || UART-A TX || || 0-1.8V || || ||

+

| 3 || UART-A RX || || 0-1.8V || || ||

|-

| 4 || ?? || || 0-1.8V || || ||

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| 10 || ?? || || 0-1.8V || || ||

|-

−

| 11 || ?? || || 0-1.8V || || ||

+

| 11 || +1.8V || || 0-1.8V || || ||

|}

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|-

| 10 || Reset || || || || ||

+

|-

+

| 11 || Vdd Referance|| || || || ||

|}

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| 5 || USB-PWR-WAVE? || Square wave || 0V-3.3V || A-9, A-10? || ~11 Hz || Appears to mirror K4. Duty cycle 66.67%. Low on screen lock. Off until first interaction.

|-

−

| 6 || USB-C V+ || Supply power || || || ||

+

| 6 || USB-C V+ || Supply power || || || || support fast charger : "normal mode = 5V+" "Fast changer = 12V+"

|-

| 7 || Unknown || Power supply? || ~3V-0V || None known || N/A || 0 when usb-c not plugged in, falls slowly on first interaction if USB-C plugged in. Power draw related?

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