129 lines
5.4 KiB
Markdown
129 lines
5.4 KiB
Markdown
# Pinouts
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All pin definitions for LattePanda Mu
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⚠️ Note:
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Due to the large number of functionally multiplexing pins, you should check the [BIOS functionality documentation](../../Softwares/BIOS/README.md) before starting your design. Do not design directly from the pin definition documentation here.
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## eDP
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I-PEX 20455-040E
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| Number | Name | Type | Description |
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|--------|-----------|:----:|--------------------------|
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| 1 | NC | | |
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| 2 | GND | | |
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| 3 | DDIA_TX3- | O | Lane 3 (-) |
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| 4 | DDIA_TX3+ | O | Lane 3 (+) |
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| 5 | GND | | |
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| 6 | DDIA_TX2- | O | Lane 2 (-) |
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| 7 | DDIA_TX2+ | O | Lane 2 (+) |
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| 8 | GND | | |
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| 9 | DDIA_TX1- | O | Lane 1 (-) |
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| 10 | DDIA_TX1+ | O | Lane 1 (+) |
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| 11 | GND | | |
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| 12 | DDIA_TX0- | O | Lane 0 (-) |
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| 13 | DDIA_TX0+ | O | Lane 0 (+) |
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| 14 | GND | | |
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| 15 | DDIA_AUX+ | O | Auxiliary channel (+) |
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| 16 | DDIA_AUX- | O | Auxiliary channel (-) |
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| 17 | GND | | |
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| 18 | LCD_VCC | | LCD Power Supplies |
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| 19 | LCD_VCC | | LCD Power Supplies |
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| 20 | LCD_VCC | | LCD Power Supplies |
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| 21 | LCD_VCC | | LCD Power Supplies |
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| 22 | Selftest | O | Default Grounding |
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| 23 | GND | | |
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| 24 | GND | | |
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| 25 | GND | | |
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| 26 | GND | | |
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| 27 | HPD | I | Plug Detection |
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| 28 | GND | | |
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| 29 | GND | | |
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| 30 | GND | | |
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| 31 | GND | | |
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| 32 | BL_EN | O | Backlight enable |
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| 33 | BL_PWM | O | Backlight PWM dimming |
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| 34 | NC | | |
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| 35 | NC | | |
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| 36 | BL_PWR | | Backlight Power Supplies |
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| 37 | BL_PWR | | Backlight Power Supplies |
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| 38 | BL_PWR | | Backlight Power Supplies |
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| 39 | BL_PWR | | Backlight Power Supplies |
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| 40 | NC | | |
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- **LCD_VCC**: +3.3V
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- **BL_PWR**: Same as LattePanda Mu input voltage
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- **Selftest**: Factory test pin, ground by default
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## Touch
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Clamshell 6P 0.5mm FFC/FPC Connector
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| Number | Name | Type | Description |
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|--------|------------|:----:|-----------------------|
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| 1 | I2C0_SCL | O | I2C Bus |
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| 2 | I2C0_SDA | I/O | I2C Bus |
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| 3 | GND | | |
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| 4 | TOUCH_RST# | O | Touch panel reset |
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| 5 | TOUCH_INT | I | Touch event interrupt |
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| 6 | +3.3V | | Touch panel power |
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## MIPI CSI-2
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Clamshell 22P 0.5mm FFC/FPC Connector
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| Number | Name | Type | Description |
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|--------|-----------|:----:|-------------------|
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| 1 | GND | | |
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| 2 | CSI_B_D0- | I | MIPI Data Lane 0 |
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| 3 | CSI_B_D0+ | I | MIPI Data Lane 0 |
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| 4 | GND | | |
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| 5 | CSI_B_D1- | I | MIPI Data Lane 1 |
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| 6 | CSI_B_D1+ | I | MIPI Data Lane 1 |
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| 7 | GND | | |
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| 8 | CSI_B_CK- | I | MIPI Clock |
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| 9 | CSI_B_CK+ | I | MIPI Clock |
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| 10 | GND | | |
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| 11 | CSI_B_D2- | I | MIPI Data Lane 2 |
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| 12 | CSI_B_D2+ | I | MIPI Data Lane 2 |
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| 13 | GND | | |
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| 14 | CSI_B_D3- | I | MIPI Data Lane 3 |
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| 15 | CSI_B_D3+ | I | MIPI Data Lane 3 |
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| 16 | GND | | |
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| 17 | CAM_RST | O | Camera reset |
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| 18 | CAM_MCLK | O | Camera main clock |
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| 19 | GND | | |
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| 20 | I2C1_SCL | O | I2C bus |
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| 21 | I2C1_SDA | I/O | I2C bus |
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| 22 | +3.3V | | Camera power |
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- **CAM_RST**: SoC GPP_A21
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- **CAM_MCLK**: SoC GPP_D4
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## eSPI Contacts
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2.54mm Pitch Contacts
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| Name | PIN | PIN | Name |
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|----------|:---:|:---:|-------------|
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| ESPI_IO0 | 9 | 10 | GND |
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| ESPI_IO1 | 7 | 8 | NC |
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| ESPI_IO2 | 5 | 6 | ESPI_RESET# |
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| ESPI_IO3 | 3 | 4 | ESPI_CS0# |
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| ESPI_CLK | 1 | 2 | +1.8V |
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Contacts on eSPI bus for SoC to communicate with SuperIO, can be used to connect diagnostic card (untested).
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## SODIMM
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DDR4 SODIMM pin table is too long, so I put it in a separate csv file.
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- [Front Side](./front.csv)
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- [Back Side](./back.csv)
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⚠️ Note:
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Due to the large number of functionally multiplexing pins, you should check the [BIOS functionality documentation](../../Softwares/BIOS/README.md) before starting your design. Do not design directly from the pin definition documentation here.
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