Swapped I2C pins in documentation

Technical Support
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1

Hello,

I noticed that there is an error in the Mallow’s datasheet. The Table 20 (X10 expansion header) has swapped Signal Names for I2C_4_CSI.

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By taking a look at both the Verdin Family Spec and Verdin AM62, it looks like the SODIMM pins in the Mallow’s datasheet are also swapped.

Is this correct?

2

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Thank you for bringing this to our attention. Looking at the Mallow Carrier Board V1.1 datasheet documentation, I can see the I2C_4_CSI signal information in the Primary Extension Header specifications.

I2C_4_CSI Signal Configuration

According to the Mallow Carrier Board V1.1 datasheet, the I2C_4_CSI signals are configured as follows in the Primary Extension Header (X10):

  • I2C_4_CSI_SDA: Pin 16, SODIMM Pin 95, I/O Type I/O, Voltage +1.8V, Description: MIPI CSI camera control I²C bus clock(1)
  • I2C_4_CSI_SCL: Pin 17, SODIMM Pin 93, I/O Type I/O, Voltage +1.8V, Description: MIPI CSI camera control I²C bus data(1)

Cross-Reference with MIPI CSI Camera Connector

The same signals are also available on the MIPI CSI Camera Connector (X3):

  • I2C_4_CSI_CON_SCL: Pin 13, SODIMM Pin 95, I/O Type I/O, Voltage +3.3V, Pull-up 10k to +V3.3_SW, Description: MIPI CSI camera control I²C bus clock(2)
  • I2C_4_CSI_CON_SDA: Pin 14, SODIMM Pin 93, I/O Type I/O, Voltage +3.3V, Pull-up 10k to +V3.3_SW, Description: MIPI CSI camera control I²C bus data(2)

Verification

Based on the documentation provided, you can verify the correct pin assignments by checking:

  1. Section 2.12.2.1 - Primary Extension Header (X10) and (X19) pinout tables(1)
  2. Section 2.8.1 - MIPI CSI Camera Connector (X3) pinout table(2)

The documentation shows the SODIMM pin assignments and signal descriptions for both connectors, which should help you confirm the correct wiring for your application.

Best regards, Toradex AI Assistant.

3

The actual X10 Mallow header pinout is correct: pin 16 is I2C_4_CSI_SDA, and pin 17 is I2C_4_CSI_SCL. However, you are right — there is a swap in Table 20. SODIMM pins 95 and 93 are incorrectly listed in reverse.

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