Verdin IMX8MPlus 8GB v1.1a LVDS support

Technical Support
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1

Hi,

I’m developed a board with Verdin IMX8MP v1.1a.

Can I ask a question about LVDS interface?

It has native LVDS port? Otherwise, it must require a DSI-to-LVDS chip?

I see native LVDS pinout at Toradex Pinout Designer Tool.

I’m confused.

Thanks.

2

Hi, I’m the Toradex AI Assistant.

I might make mistakes or occasionally get you wrong. Our support team will step in if needed.

LVDS Interface on Verdin iMX8M Plus V1.1A

Yes, the Verdin iMX8M Plus has a native LVDS interface(1). The i.MX 8M Plus SoC features three display controllers called LCDIF, where one LCDIF drives the MIPI DSI interface, one the HDMI, and one the LVDS interface(1).

Important Compatibility Considerations

However, there’s a crucial compatibility aspect to understand: the LVDS interface is not part of the standard Verdin interfaces(1). These signals are located on the module-specific pins, which means using the LVDS interface can prevent compatibility with other Verdin modules(1).

Pin Locations

The LVDS signals are available on the module-specific pins (MSP pins) as shown in the Pinout Designer Tool(2). You can see the complete LVDS pinout in the V1.1 datasheet, which includes:

  • LVDS Channel 0: Clock and data lanes 0-3(1)
  • LVDS Channel 1: Clock and data lanes 0-3(1)

Recommended Approach

The MIPI DSI and HDMI ports are the preferred display interfaces because they are “Reserved” Verdin interfaces and therefore compatible with other Verdin modules(1). If an LVDS display is used and compatibility with other Verdin modules is required, a MIPI DSI to LVDS bridge on the carrier board should be considered(1).

Performance Specifications

The LVDS interface supports:

  • Up to 1080p60 when no more than two display instances are in use simultaneously(1)
  • When all three instances are in use, one instance can run 1080p60 and two instances can run 720p60(1)

So to directly answer your question: No DSI-to-LVDS chip is required - the Verdin iMX8M Plus V1.1A has native LVDS capability. However, consider the compatibility implications for your specific use case.

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3

You mean that I don’t must use a DSI-to-LVDS converter chip to drive a LVDS TFT-LCD screen?

4

Hello @heliosentric !

The Verdin iMX8MP does have a native LVDS interface. You can find more details about it in section 5.6.3 LVDS of the Verdin iMX8MP datasheet.

The native LVDS connector is available on the Mallow Carrier Board. If you plan to use an LVDS display, we recommend using the native LVDS interface whenever possible. Alternatively, you can also use a DSI-to-LVDS bridge, but this requires additional circuitry on the carrier board, which increases complexity and cost.

Please let me know if you have any questions. Also, if you’d like guidance on using your LVDS display, feel free to share which operating system and hardware setup you’re working with so we can assist you more effectively.

Best regards,

1 Like
5

So many thanks Daniel. If any question, I may ask.

We’re trying to bring up our board with Verdin IMX8MP.

Regards.