Quote Originally Posted by Jerson View Post
I2Cread / write are more tolerant of timing requirements as they are clocked synchronously. SEROUT/IN and its variants are async and surely have a problem with anything disturbing their merry timing. Option is use HSERIN etc
Hi Jerson - you've stumped me there!

I'm wanting to control a MCP4651 (a dual I2C POT) with a 16F690 using I2C (so PIC as master....sending 'wiper' positional data to a pot) .....where does HSERIN come into play?