Tool/software:
Currently, I am using the slave mode of the LM98725 to convert data from a CCD chip. I have set the driving mode to slave mode (by setting the second bit of page 0, address 00, to 0) and configured the low-speed SH line, as well as specified the waveform of the PHIA line. Once I lock the chip status (by setting the first bit of page 0, address 00, to 1), when there is no pulse signal coming into SH_R, the low-speed SH line appears normal with no output, but the high-speed PHIA line continuously outputs pixel transfer waveforms. Additionally, the SH interval is not observed. When I input a pulse signal through SH_R, both the low-speed SH line and the specified PHIA line appear normal, initially outputting an SH interval waveform, followed by the high-speed line outputting pixel transfer waveforms.
I would like to ask which registers should be set so that the PHIA line remains off when there is no SH_R pulse signal input?
