CONNECTIVITY MASTER UNIT [(US)]
CONNECTIVITY MASTER UNIT [(US)]
SM2566533
id1600000002a1
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Note
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• iPod is a registered trademark of Apple Inc.
Purpose, Function
• The connectivity master unit (CMU) controls the entire system such as communication between mobile devices and Bluetooth ®, and the sending/receiving of video/audio signals from units related to the entertainment system.
Bluetooth® communication function
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• The CMU uses the integrated Bluetooth ® driver and antenna to perform communication between Bluetooth ®-enabled devices and Bluetooth ®.
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• To perform Bluetooth ® communication, pairing of a Bluetooth ®-enabled device with the CMU is required to specify the device. For the pairing method, refer to the [Bluetooth ® PAIRING PROCEDURE] in the workshop manual.
Specification
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Item |
Content |
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Compatible profiles
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A2DP 1.0/1.2 (Advanced audio distribution profile)
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A2DP is a profile for transmitting high quality audio data by means of a Bluetooth ® device and wireless transmission technology.
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AVRCP 1.0/1.3/1.4 (Audio/video remote control profile)
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AVRCP is a profile which provides a standard interface which controls television and audio devices. The function differs depending on the version.
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Maximum number of programmable devices
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7
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Number of Bluetooth ®-enabled devices which can be used simultaneously
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2 *1
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*1 :A Hands-free call can be placed using another Bluetooth ®-enabled device during audio playback using the other Bluetooth ®-enabled device.
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Note
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• The profile indicates the wireless communication standard. If the profile of the Bluetooth ®-enabled device differs from the CMU, wireless transmission may not be possible. In addition, depending on the profile version, the corresponding functions differ.
Operation signal reception function
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• The CMU controls units related to the entertainment system based on the following operation signals which are sent in conjunction with the user operations from the operation signal output unit.
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Operation signal output unit |
Operation signal |
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Center display
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GMSL signal (touch position operation signal)
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Commander switch
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Commander switch operation signal
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Steering switch
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Steering switch operation signal
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Voice recognition microphone
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Voice signal (voice command)
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GMSL*2 signal conversion function
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Note
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• Communication between the CMU and the center display is performed via the GMSL communication line.
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• The CMU converts signals sent from the following units to a GMSL signal and displays each type of information in the center display.
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Output unit |
Video signal/display request signal |
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Remote tuner (RT)
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• Radio broadcast logo, album art, song name
• Traffic information such as location and length of traffic jams
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USB port/SD card slot hub
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• Information for file being played (artist/song name)
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Devices such as Bluetooth ®-enabled mobile phones and or mobile devices such as Smartphones/Bluetooth ®-enabled devices
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• Telephone book, incoming call record
• Radio broadcast logo, album art, song name
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Rear mount camera
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• Image at rear of vehicle
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360° view monitor control module
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• Image at vehicle front
• Image on left front side of vehicle
• Image at rear of vehicle
• Image around vehicle from top of vehicle
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CMU
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• Incoming call pop-up screen display
• Fuel economy monitor screen
• Mobile 911 screen display (U.S.A./Canada)
• Warning guidance screen display
• Navigation screen display
• Temperature warning pop-up screen display
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• By converting the video signal to a GMSL signal, the CMU is able to display stable images in the center display virtually free from the effects of noise.
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• The GMSL communication pathway between the CMU and the center display corresponds to HDCP *3.
*2 :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.
*3 :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.
Audio transmission signal function
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• The CMU transmits the audio signal received from a mobile device such as the following USB port/SD card slot hub and Smartphone devices to the remote tuner (RT). The CMU receives audio signals from the voice recognition microphone and performs operations according to the commands.
Fuel efficiency function
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• The CMU receives the fuel consumption amount and travel distance information signal from the instrument cluster and displays it in the center display as the fuel efficiency monitor. For details, refer to the fuel efficieny monitor of the [CENTER DISPLAY]. (See CENTER DISPLAY [(US)].)
Mobile 911 function (U.S.A./Canada)
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• The CMU receives the fuel cut request signal sent from the SAS control module via CAN, executes the Mobile 911 function, and performs the following. For details, refer to the entertainment system Mobile 911 operation. (See ENTERTAINMENT SYSTEM [(US)].)
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― Mobile 911 guidance audio signal transmission― Mobile 911 screen display signal transmission― Auto dial to PSAP (call initialized)― Auto replay of location information audio
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Navigation function
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• The CMU performs map display and route guidance based on the position information received from the GPS antenna and the map information received from the USB port/SD card slot hub. For details, refer to the [ENTERTAINMENT SYSTEM] navigation function. (See ENTERTAINMENT SYSTEM [(US)].)
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Turn-by-turn (TBT)
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• The turn-by-turn (TBT) function displays the travel direction of the route guidance in the active driving display. The turn-by-turn (TBT) operates when all of the following conditions have been met. For details, refer to the navigation function turn-by-turn (TBT) of the [ENTERTAINMENT SYSTEM]. (See ENTERTAINMENT SYSTEM [(US)].)
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― Route guidance of navigation function is operating― Navigation guidance is set to ON using the personalization function for the active driving display
• The CMU sends the turn-by-turn (TBT) display request signal to the instrument cluster to display the direction heading and distance in the active driving display. -
Automatic configuration function
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• When the ignition is switched ON (engine off or on) after the CMU is replaced, the CMU reads the vehicle specification information sent from the instrument cluster, and stores the vehicle specification information.
On-board diagnostic function
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• The CMU has an on-board diagnostic function to facilitate system diagnosis. DTCs are stored in the event of a malfunction occurring. For details, refer to the [DTC TABLE]. (See DTC TABLE [CONNECTIVITY MASTER UNIT (US)].)
Diagnostic assist function
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• The CMU has a diagnostic assist function which can verify the following. For details, refer to the [DIAGNOSTIC ASSIST FUNCTION]. (See DIAGNOSTIC ASSIST FUNCTION [CONNECTIVITY MASTER UNIT (US)].)
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― Connection status of related parts― Operation status of related parts― Related part specifications
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Construction
• The CMU is located centrally inside the dashboard.
• The CMU has an integrated Bluetooth ® driver and antenna.
bmcozp00000393
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Operation
• For the CMU operation, refer to the [ENTERTAINMENT SYSTEM]. (See ENTERTAINMENT SYSTEM [(US)].)