Hi,
The serializer is DS90UB935 and the deserializer is DS90UB954. In DS90UB954, the CSI_PLL_CTL (Address 0x1F) is set as 0x03 (400 Mbps serial rate). How to set DS90UB935 to match the 400 Mbps transmitter speed?
Thanks.
Kevin Xiong
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Hi,
The serializer is DS90UB935 and the deserializer is DS90UB954. In DS90UB954, the CSI_PLL_CTL (Address 0x1F) is set as 0x03 (400 Mbps serial rate). How to set DS90UB935 to match the 400 Mbps transmitter speed?
Thanks.
Kevin Xiong
hi,
for this case, the 953's input csi2 total data bandwidth should be less than 400Mbps x lane number.
regards,Steven
Hi Steven,
Thank you for your reply.
Does the DS90UB935 need configure the related registers? Do we just consider the input of DS90UB935?
Thanks.
Kevin Xiong
yes, you need set the csi2 port to make them alignment, such as lane number, continuous clock etc if these settings are NOT default.
Steven
Hi Steven,
Let me clarify this issue. The 954 sets tx speed as 400Mbps (the default value is 800Mbps). We don't change any register on 935 (let all registers of 935 as the default value) and just consider the 935's input signal. Then we can match this application. Is that right?
Thanks.
Kevin Xiong
Let me clarify this issue. The 954 sets tx speed as 400Mbps (the default value is 800Mbps). We don't change any register on 935 (let all registers of 935 as the default value) and just consider the 935's input signal. Then we can match this application. Is that right?
Let me clarify this issue. The 954 sets tx speed as 400Mbps (the default value is 800Mbps). We don't change any register on 935 (let all registers of 935 as the default value) and just consider the 935's input signal. Then we can match this application.
not, i can't understand your meaning "don't change any register...".
please note: the rate request doesn't matter with the reg. setting directly! but for the 953's csi2 port, you need make it match with the isp or sensor output, NOT matched with 954.
Steven