Byte-oriented protocol
Encyclopedia
Byte-oriented framing protocol is similar to bit-oriented protocol
except that instead of viewing the frame as a collection of bits, byte-oriented framing views the frame as a collection of bytes. For example UART communication is byte oriented.
Bit-oriented protocol
A bit-oriented protocol is a communications protocol that sees the transmitted data as an opaque stream of bits with no semantics, or meaning. Control codes are defined in terms of bit sequences instead of characters. Bit oriented protocol can transfer data frames regardless of frame contents...
except that instead of viewing the frame as a collection of bits, byte-oriented framing views the frame as a collection of bytes. For example UART communication is byte oriented.