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Hardware interface description

Interface overview​

NIO 12L Overview

Interface details​

SoC​

The SoC is Mediatek Genio 1200 SoC (MT8395).

RAM​

NIO 12L is equipped with LPDDR4X。

UFS​

NIO 12L is equipped with UFS2.1。

Power supply​

The power supply port of NIO 12L is a Type-C DC port, which only supports 5V input. It is recommended to use a minimum 5V/3A power adapter. Most mobile phone chargers will suffice.

tip

Radxa recommends Radxa Power PD30W.

Button​

NIO 12L has 3 buttons: Power button, Download button and Home button.

  • Power button
    • Used to power on and off the device.
  • Download button
    • Used to boot the device into download mode.
  • Home button
    • User-defined button.

LED​

  • Power LED (green)
    • When the power adapter is plugged in, the green power LED will be on. Not controlled by software.
  • System status LED (blue)
    • The status LED can be controlled by software. It can be controlled by the GPIO_07 pin.
  • User LED (red)
    • The user LED can be controlled by software. It can be controlled by the GPIO_06 pin.

HDMI TX​

NIO 12L is equipped with an HDMI connector for HDMI output. The maximum resolution supported is 4K@P60Hz. It also supports HDMI CEC function.

HDMI RX​

NIO 12L is equipped with an HDMI connector for HDMI input. The maximum resolution supported is 4K@P60Hz.

MIPI DSI​

NIO 12L provides one MIPI DSI port. Utilizes a 39-pin, 0.3 mm pitch, gold-plated connector, model FH35C-39S-0.3SHW(50).

nio 12l dsi

NumberPin NameVoltage&NumberPin NameVoltage
1VDD3V33.3V
&
2IOVCC1V8-3V31.8V
3NULL
&
4RESET3.3V
5NULL
&
6GND1
7MIPI-0N
&
8MIPI-0P
9GND2
&
10MIPI-1N
11MIPI-1P
&
12GND3
13MIPI-CKN
&
14MIPI-CKP
15GND4
&
16MIPI-2N
17MIPI-2P
&
18GND5
19MIPI-3N
&
20MIPI-3P
21GND6
&
22GND7
23TP-RESET3.3V
&
24TP-VCC3.3V
25TP-INT3.3V
&
26TP-SDA3.3V
27TP-SCL3.3V
&
28GND8
29GND9
&
30VCC3V313.3V
31VCC3V323.3V
&
32GND11
33GND12
&
34LED-1
35LED-
&
36NULL
37NULL
&
38LED+1
39LED+
&

MIPI CSI​

NIO 12L provides two MIPI CSI ports. Utilizes a 31-pin, 0.3 mm pitch, gold-plated connector, model FH35C-31S-0.3SHW(50).

nio 12l csi1 nio 12l csi2

NumberPin NameVoltage&NumberPin NameVoltage
1GND
&
2CSI_RX_D3N
3CSI_RX_D3P
&
4GND
5CSI_RX_D2N
&
6CSI_RX_D2P
7GND
&
8CSI_RX_CLK1N
9CSI_RX_CLK1P
&
10GND
11CSI_RX_D1N
&
12CSI_RX_D1P
13GND
&
14CSI_RX_D0N
15CSI_RX_D0P
&
16GND
17CSI_RX_CLK0N
&
18CSI_RX_CLK0P
19GND
&
20CAMERA2_CLK
21GND
&
22CAMERA1_CLK
23CAM1_PDN_H1.8V
&
24SCL_CAM1.8V
25SDA_CAM1.8V
&
26CAM0_PDN_H1.8V
27CAM_RST1.8V
&
28VCC_3V33.3V
29VCC_3V33.3V
&
30VCC_5V05V
31VCC_5V05V
&

Ethernet Port​

NIO 12L provides Ethernet interface to Gigabit Ethernet.

PinNamePinName
1PHY1_MDI0+2PHY1_MDI0-
3PHY1_MDI1+4GND
5GND6PHY1_MDI1-
7PHY1_MDI2+8PHY1_MDI2-
9PHY1_MDI3+10PHY1_MDI3-
11PHY1_MDI0-12PHY1_MDI0+
13GND14PHY1_MDI1+
15PHY1_LED_G+16PHY1_G_LED-
17PHY1_Y_LED+18PHY1_Y_LED

Wireless Module​

NIO 12L is equipped with the MT7921 wireless module for Wi-Fi6 / BT 5.2. When using it, you need to attach three antennas.

USB​

NIO 12L provides 4 Type-A USB3.0 host ports. It also provides a Type-C port to support USB host/device and DP display.

Headphone​

NIO 12L headphones support audio output and input.

Speaker​

Supports connecting to speakers. Needs to attach components on the board to use.

40-PIN GPIO Header​

GPIO voltage​

The high level voltage of all GPIOs is 3.3V.

GPIO numberFunction2Function1Pin#Pin#Function1Function2GPIO number
+3.3V12+5.0V
359SDA2GPIO1234+5.0V
360SCL2GPIO1356GND
483SPIM1_CSBGPIO13678GPIO98UTXD0445
GND910GPIO99URXD0446
484SPIM1_CLKGPIO1371112GPIO104DISP_PWM1451
485SPIM1_MOGPIO1381314GND
486SPIM1_MIGPIO1391516GPIO61DMIC1_SLK408
+3.3V1718GPIO62DMIC1_DAT409
489SPIM2_MOGPIO1421920GND
490SPIM2_MIGPIO1432122GPIO17SCL4364
488SPIM2_CLKGPIO1412324GPIO140SPIM2_CSB487
GND2526ADCIN
362SCL3GPIO152728GPIO14SDA3361
404I2SO2_MCLKGPIO572930GND
405I2SO2_BCKGPIO583132GPIO16SDA4363
406I2SO2_WSGPIO593334GND
407I2SO2_D0GPIO603536GPIO47I2SIN_BCK394
393I2SIN_MCKGPIO463738GPIO48I2SIN_WS395
GND3940GPIO49I2SIN_D0396