Process data mode

Control byte in process data mode

The control byte (CB) is located in the output image, and is transmitted from the controller to the KL6811.

Bit	CB.7	CB.6	CB.5	CB.4	CB.3	CB.2	CB.1	CB.0
Name	RegAccess	R/W	-	-	-	-	RepeatASC	Toggle

Key

Bit	Name	Description
CB.7	RegAccess	0_bin	Register communication off (process data mode)
CB.6	R/W	0_bin	Read access
CB.5 to CB.2	-	reserved
CB.1	RepeatASC	0_bin	The KL6811 does not repeat the application-related expansion commands (224_dec-255_dec) not.
CB.1	RepeatASC	1_bin	The KL6811 also repeats the application-related expansion commands (224_dec-255_dec).
CB.0	Toggle	With each edge change of the toggle bit, the KL6811 sends a DALI or DSI telegram. The telegrams can be transmitted at intervals of 25 ms, i.e. within 100 ms the KL6811 can send a maximum of 4 telegrams. Depending on the content (with or without return channel), the duration of a DALI telegram cycle is between 25 and 43.34 ms. The end of a DALI telegram cycle is indicated by an edge of the toggle bit in the status byte (SB.0).

Status byte in process data mode

The status byte (SB) is located in the input image, and is transmitted from KL6811 to the controller.

Bit	SB.7	SB.6	SB.5	SB.4	SB.3	SB.2	SB.1	SB.0
Name	RegAccess	Error	-	-	-	BC Collision	FC Collision	Toggle

Key

Bit	Name	Description
SB.7	RegAccess	0_bin	Acknowledgement for process data mode
SB.6	Error	0_bin	No error
SB.6	Error	1_bin	Error: In DALI mode if the internal DALI power supply unit of the KL6811 is used: overload of the internal DALI power supply unit of the KL6811 (bus under-voltage) In DSI mode: error message from one (or several) of the DSI devices
SB.5 to SB.3	-	reserved
SB.2	BC Collision (only in DALI mode)	0_bin	no collision
SB.2	BC Collision (only in DALI mode)	1_bin	DALI collision detected on the backward channel: during the transfer of a DALI telegram, a collision with the send data of another DALI device was detected. The bit SB.2 is reset with the next edge of the bit SB.0, unless another DALI collision has occurred.
SB.1	FC Collision (only in DALI mode)	0_bin	no collision
SB.1	FC Collision (only in DALI mode)	1_bin	DALI collision detected on the forward channel: during the transfer of a DALI telegram, a collision with the send data of another DALI master was detected. The bit SB.1 is reset with the next edge of the bit SB.0, unless another DALI collision has occurred.
SB.0	Toggle	An edge of SB.0 is the acknowledgement for the end of the telegram cycle initiated with the toggle bit of the control byte (CB.0). The telegram was sent via the DALI/DSI bus. In DALI mode, the collision bit (SB.1) provides information about any collisions that may have occurred.