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TLC5946: Do I need GSCLK and does BLANK have to toggle

WST
Expert 1025 points
Part Number: TLC5946


Tool/software:

We have used this part in the past, but I want to program it with a microcontroller instead of an FPGA.

1) Do I need to drive the GSCLK input, or can I just use this in DC mode?
2) If I do need to drive the GSCLK input, do I need to toggle BLANK after 4096 counts or will the part restart the output drive after the counter completes? Can the blank just be set low and have part will cycle the outputs?

Thanks,
Warren