Department of Computer Scien

ce and Information Engineering

National Cheng Kung University

HANEL

SEMI-

CONDUCTOR MEMORY

RAM

Checksum Byte

ROM

‰To ensure the integrity of the ROM contents, every system must perform the checksum calculation

¾The process of checksum will detect any corruption of the contents of ROM¾The checksum process uses what is called a checksum byte

ƒThe checksum byte is an extra byte that is tagged to the end of series of bytes of data