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For voltage selection VCCIO_35 (SoM TE0724, Bank 35) can be selected by adding a jumper on J19. Voltages and maximum current ratings are given in the corresponding TRM of the attached module, (e.g. TE0724 TRM#PowerRails ).
| PIN | Signal | B2B |
|---|---|---|
| J19-1 | VLDO1 | J1-83 |
| J19-2 | GND | |
| J19-3 | VCCIO_35 | J1-54 |
| J19-4 | VLDO2 | J1-94 |
J19-5 | VLDO34 | J1-53 |
| J19-6 | GND |
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| Power Input | Typical Current |
|---|---|
| VINTBD | *340 mA |
Table 19: Typical power consumption.
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Power-Off is in reverse order. VCCIO_35 has to be disabled before the SoCs core voltages are turned off.
Power Rails
Some of the power rails are sourced by the attached module, see coresponding TRMs of this for further information (e.g. TE0724 TRM#PowerRails).
Power Rail Name | B2B J1 Pins | Direction on B2B | Notes |
|---|---|---|---|
| VIN | 154, 156, 158, 160 | Output | External main supply voltage (5V). |
| 3.3V | 43, 74 | Input | |
1.8V | 63 | Input | |
| VCCIO_35 | 54 | Output | Source selectable by J19. |
VLDO1 | 83 | Input | (TE0724: 3.3V) |
| VLDO2 | 94 | Input | Used to enable UART level shifter. Therefore fix at 1.8V. |
| VLDO34 | 53 | Input | (TE0724: 2.5V) |
VBAT | 152 | Input/Output | Reserved for PMIC backup battery and charger. |
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Revision History
Hardware Revision History
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Date | Revision | Contributors | Description | ||||||||||||||||||||||||||
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| v.27 | Martin Rohrmüller |
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| v.26 | Martin Rohrmüller |
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| v.25 | Martin Rohrmüller |
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| v.24 | Martin Rohrmüller |
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v.23 | John Hartfiel |
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2018-07-10 | v.19 |
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