GMSL*3 signal conversion function

WARNING: This page is about a different car, the 2024 Mazda CX-90. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Communication between the connectivity master unit (CMU) and the center display is performed via the GMSL communication line.

The connectivity master unit (CMU) converts signals sent from the following units to a GMSL signal and displays each type of information in the center display.

Output unit

Video signal/display request signal

Remote tuner (RT)

Radio broadcast logo, album art, song name
Traffic information such as location and length of traffic jams

CD/DVD player

Playback file information (artist/song name)

USB port/SD card slot hub

Information for file being played (artist/song name)

Devices such as Bluetooth ®-enabled mobile phones and or mobile devices such as Smartphones/Bluetooth ®-enabled devices

Telephone book, incoming call record
Radio broadcast logo, album art, song name

Rear mount camera

Image at rear of vehicle

360° view monitor control module

Image at vehicle front
Image on left front side of vehicle
Image at rear of vehicle
Image around vehicle from top of vehicle

Connectivity master unit (CMU)

Incoming call pop-up screen display
Fuel economy monitor screen ⁽¹⁾
Energy efficiency history ⁽¹⁾
Warning guidance screen display
Navigation screen display
Temperature warning pop-up screen display
Automatic 911 dialing screen display (with automatic 911 dialing)

⁽¹⁾	Some models.

By converting the video signal to a GMSL signal, the connectivity master unit (CMU) is able to display stable images in the center display virtually free from the effects of noise.
The GMSL communication pathway between the connectivity master unit (CMU) and the center display corresponds to HDCP ^*5 .

*3: The GMSL displays the electrical properties of the signal using low-voltage differential signaling. GMSL is a digital, wired transmission technology for the short range which adopts a differential interface having the characteristics of low voltage and low power consumption.

*5: HDCP (High-bandwidth Digital Content Protection system) is a copyright protection technology which prevents content from being copied fraudulently. The pathway in a display device such as a display, which sends/receives digital signals from a video playback device such as a computer, is encrypted.