Endianness

The document discusses endianness as it relates to binary numbers, storage units like registers and memory, and data transfer between memory and registers. It defines endianness as the byte ordering used to represent data in memory or transmission. Little-endian means lower numbered bytes have lower significance, while big-endian means higher numbered bytes have lower significance. The document states that memory and registers themselves do not have endianness, but that endianness describes how data is interpreted on its way between these storage units. It warns of potential issues when integrating components with different endianness interpretations.