Datasheet

DS_INLC10AQ Revision 1.0_B

Inova Semiconductors Confidential

Page 19 of 35

If a frame with an address equal to the adjacent device address (own address plus one) is received, the

own response to the digLED_Init_Strip command is transmitted thereafter. If the first device has transmitted

its response frame, the chain is ready to process regular commands (non-Init frames).

As soon as a device is initialized, it unconditionally forwards incoming correct frames (Frame-Sync, Freq-

Sync and the RLC coding as well as the frame length are checked) to the adjacent node in the chain.

Frames received from upstream are forwarded downstream and vice versa. If an error is detected, the

forwarding is stopped for this frame.

Name

Description

Equation

tINIT

Initialization duration

n x (tDS_CL + tUS_CL + 2 x tPD)

Table 16

– Initialization duration

4.1.6 Write Access

Most commands of the LED Controller are write-only commands. I.e. the devices receive a command frame

and execute the appropriate actions without any further communication. A write access command may be

directed to a single device (unicast), to all devices (broadcast), or to a defined group of devices (multicast).

As every command frame is forwarded downstream irrespective of its destination address, all stations

always receive all commands. Only its execution depends on the

command’s destination address. To avoid

communication issues, it is recommended to wait 30% of the command length between two consecutive

commands.

Figure 14 - Multiple single ended downstream commands

Parameter

Description

Min.

tDS_Lat

Latency between two downstream commands

0.3

x tDS_CL

Table 17 - Recommended latency between downstream commands