User`s manual

Applilet EZ for HCD Controller
APPENDIX D DALI MODE COMMUNICATION DATA
R20UT0435EJ1200 Rev. 12.00 52
Jul 31, 2014
APPENDIX D DALI MODE COMMUNICATION DATA
The communication data by DALI (Digital Addressable Lighting Interface) mode is described below.
DALI communication
Host Machine
(PC, microcontroller, etc.)
Master board
(EZ-0008, etc.)
Target
Target
Target
Remark The EV-K0-HCD is not supported DALI communication.
DALI performs communication using the following protocol.
D.1 Protocol Specifications
DALI is a network consisting of up to 64 short addresses and 16 group addresses, and performs half-duplex command
communication between one master and one slave or multiple slaves.
DALI commands are used for purposes such as setting the dimming level with 8-bit accuracy and saving or switching
among up to 16 arbitrary dimming levels.
The communication speed is 1,200 Hz 10%.
<1> Bit definition
A falling edge is bit-defined as “0” and a rising edge as “1”, because DALI communication uses Manchester code.
If no communication is performed, DALI communication is fixed to the high level.
Figure D-1. Bit Definition
11001