LED1642GW - Endianness of Configuration Register?

[GKerwood]

Hello,

I would grateful for some clarity on the expected bit order when writing to the configuration register of the LED1642GW.

Whilst it is clearly documented that CFG-0 is the LSB, and CFG-15 is the MSB of the serialised word, it is not clear to me whether data is expected as LSB or MSB first?

Section 8.8 - PWM counter setting and brightness register (CFG-15) Does however state"(first input bit of brightness word is MSB, 16th bit is LSB)", with respect to brightness values, so I'd expect this to be universally the case? So... Big Endian?

Many Thanks

[Winfred LU · Accepted solution]

Yes, it would be Big Endian for all those registers.

[GKerwood]

Thank you kindly. I’d come to the same conclusion though trial error but it’s great to have confirmation!