SBC Axel SBC/Interfaces and Connectors/PCIe
| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Oct 2020 | First DESK release | |
PCIe[edit | edit source]
Description[edit | edit source]
J34 is a 20x2x1.00 mm One Piece Interface dedicated to the MIPI camera input and the PCI Express expansion bus interface.
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 1 | - | 5V_IN | ||
| 2 | J10.64 | PCIE_WAKE_B | ||
| 3 | J10.97 | AUX_PWR_EN | connected to GPIO4_IO10 (KEY_COL2) | |
| 4 | J10.76 | PCIE_RST_B | ||
| 6 | J10.74 | PCIE_DIS_B | ||
| 7 | J10.84 | PCIE_CLKN | ||
| 9 | J10.86 | PCIE_CLKP | ||
| 10 | J10.92 | PCIE_RXN_R | ||
| 12 | J10.94 | PCIE_RXP_R | ||
| 16 | J10.96 | PCIE_TXN_C | ||
| 18 | J10.98 | PCIE_TXP_C | ||
| 20 | - | 3V3 | ||
| 25 | J10.102 | CSI_CLK0M_1 | ||
| 26 | J10.48 | CSI_SDA | ||
| 28 | J10.38 | CSI_SCL | ||
| 5, 8, 11, 14, 17, 23, 24, 29, 30, 35, 36 |
- | DGND | Ground |
Device mapping[edit | edit source]
The PCI express peripheral is mapped to the corresponding device in Linux depending on the associated kernel device driver and on the device tree configuration.
