Hello,
I would like to ask a question about issue on my project.
I am using SN65DP159RSBT on HDMI input interface.
After power-up, I set some registers to operate the device.
Then, 4K60p signal is input to this. But the output clock frequency of SN65DP159 is wrong.
- The input clock frequency is 148.5MHz.
- The output clock is frequency is approximately 37MHz.
After saw this issue, I changed the following register value.
After that, I measured that the output clock frequency is 148.5MHz same as input clock.
- Misc Control Register 0x0A b[2] : b0 -> b1
(Reference)
The setting of Misc Control Registers are below.
Except for 0x0A b[2] register, these registers have not changed after initialization.
0x09h : 0x02
0x0Ah : 0xB1
0x0Bh : 0x1A
0x0Ch : 0x00
0x0Dh : 0x00
I'm not sure how to avoid this issue so far.
I would appreciate it if you could give me some advice for me.