CRC16ANSI

CRC16ANSI refers to a specific implementation of the Cyclic Redundancy Check (CRC) algorithm, using a 16-bit checksum and employing a particular polynomial and initial value. The "ANSI" designation typically indicates a standard or common variant that gained traction, often associated with communication protocols and data integrity checks. This CRC variant is a polynomial code, meaning it treats data as coefficients of a polynomial and performs division modulo 2. The result of this division is the checksum, which is appended to the data. When the receiver performs the same CRC calculation on the received data and the appended checksum, a zero result signifies that the data was likely transmitted without errors. CRC16ANSI is characterized by its specific polynomial, often 0x8005 (x^16 + x^15 + x^2 + 1), and an initial register value of 0xFFFF. It also typically involves bit reflection for both input data and the final checksum. This variant is widely used in various industrial and communication systems due to its ability to detect common transmission errors like single-bit errors, burst errors, and other data corruption issues. Its widespread adoption has made it a de facto standard in certain applications.