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LDLL16ENTR Datasheet(PDF) 36 Page - STMicroelectronics

Part # LDLL16ENTR
Description  16-channel LED driver with automotive CAN FD light interface
PDF  102 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LDLL16ENTR Datasheet(HTML) 36 Page - STMicroelectronics

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5.6
Broadcast frames
5.6.1
Frame format
Broadcast frames are transmitted to all responders in the network. The broadcast frame contains in its ID the
number of the chain that is addressed. Each responder belonging to this chain picks its data from the maximum
64 bytes transferred by this frame. Each LDLL16EN device can pick 16 bytes of data. The position from where it
picks the data is defined during Chain Initialization.
The Figure 23 shows the communication flow of a broadcast frame.
Figure 23. Broadcast message flow
Commander
Error
detected?
Send Broadcast
Frame
(Broadcast ID)
Receive Frame
Send ACK
Receive ACK
Error
detected?
No
Transmission
Successful
Increase REC
Increase TEC /
Send Error
Frame
Receive Error
Frame
Increase REC
Yes
Responder
Yes
No
End
Transmission
End
Transmission
Reception
Successful
End
Transmission
Decrease REC
LDLL16EN
Communication interface
DS14111 - Rev 5
page 36/102



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