Hello,
Our customer uses the SN65DSI84.
The signal of the customer is below.
DSI 4Lane , MIPI CLK is 432MHz
LVDS 8Lane , LVDS CLK is 36MHz
VIDEO resolution : 1430 x 840 Frame rate : 60fps
The customer used the DSI Tuner. The result is no error and the customer got a CSR List.
Is it correct? I think MIPI CLK is too much fast.
Best Regards,
Naoki Aoyama
Hello Naoki,
Is the customer using burst or non-burst video mode?
In non burst mode, the DSI CLK = minimum DSI CLK frequency required to sample in the line worth of data.
The DSI CLK is faster in burst mode. If this the their case then the 432Mhz will be correct.
Whether the CPU provides the data in non burst or burst mode, the device configuration does not change other than the CLK related settings.
The burst mode only means data is provided in burst manner then the rest of the line period can be filled in LP11 which is the low power state in the DPHY definition. During the low power state, the HS Tranceiver/receiver can be disabled to save power.
Here’s an excerpt from the DSI spec:
Regards
