User's Manual

ACR1281S
 Advanced Card Systems Ltd. Page 55 of 56
ANNEX A
Example of XOR:
The Checksum byte is one byte in length and is calculated as the exclusive-OR of all the bytes with
the Bulk-Header field and information field.
E.g.:
Command: 02 6F 05 00 00 00 01 00 00 00 00 80 B2 00 00 08 51 03
The Bulk-Header field is 6F 05 00 00 00 01 00 00 00 00, and the information field is 80 B2 00 00
08 and the checksum is 0x51