Posted by greerde September 10, 2003
i'm starting on a project that requires async serial input and sync
output.

I just wanted to make sure the 16f877 can do both of these at the
same time. I think i am going to use SPI (instead of I2C) for the
sync output and USART for the async input. does this sound like a
good plan? should i use I2C instead?

anyone have experience with this?

what are the upper and lower frequency limits for the sync output?

thanks for any help.