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User Manual
DALI / Ethernet
Document code: MN67839_ENG Revision 1.001 Pagina 34 di 62
(*) Start/Ctrl field
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Indentify/nDALI
Echo
DSI/nDALI
0
0
0
0
Where:
bit 7: Monitor Enable. 1 = enable monitor function. If enabled the HD67839 sends all received DALI data back to the PC.
bit 6:
o
High: no data is sent via the DALI bus. Response only on PC (to check connection) when DATA_HI = 00h and DATA_LO = 01h,
then enable / when DATA_HI = 00h and DATA_LO = 00h, then disable (default: enable)
o
Low: DALI (DSI) output on the DALI bus
bit 5:
o
High: immediate reply to PC (not waiting for DALI answer)
o
Low: waiting for DALI answer (10 ms max.) DALI „NO“ after 10 ms
bit 4:
o
High: data output in DSI format
DATA_MID = 0: DATA_LO = 8 bit DSI data
o
Low: data output in DALI format:
DATA_MID: DALI HighByte (DALI address byte)
DATA_LO: DALI LowByte (DALI command byte)
data output in eD format:
DATA_HI: eD HighByte
DATA_MID: eD MiddleByte
DATA_LO: eD LowByte
bit 3: 0