I would thankful for some clarity on the expected bit order when writing to the configuration register of the LED1642GW.
Whilst it’s easily proved that CFG 0 is the LSB, and CFG- 15 is the MSB of the serialized word, it isn’t clear to me whether data is expected as LSB or MSB first?
Section 8.8- PWM counter setting and brightness register (CFG- 15) Does still state” (first input bit of brightness word is MSB, 16th bit is LSB)”, with respect to brightness values, so I’d anticipate this to be widely the case? So. Big Endian?