The image shows a buffer register as part of an SPI module
Why exactly is a buffer connected to the FIFO registers?
Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. It only takes a minute to sign up.
Sign up to join this communityIt is not a buffer in a way you might think about a buffer.
The SPIxBUF is the name for a IO special function register address that is used to write/read the data to/from FIFOs.