Patent ID: 11928022
Assignee: MICROCHIP TECHNOLOGY INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 22:
23. A method, comprising, in a universal asynchronous receiver/transmitter (UART):
determining contents of a transmission register, the transmission register to include information capable to be transmitted by the UART to one or more first destinations outside of the UART, the contents to include underlying data and a parity bit based on the underlying data;
routing the contents of the transmission register through a virtual remappable pin to a receive register capable of receiving information from one or more second destinations outside of the UART;
before reception of the entire contents of the transmission register at the receive register, causing modified contents to be provided to the receive register, the modified contents including different underlying data or a different parity bit than the contents of the transmission register, the modified contents to cause a parity error; and
determining whether a parity error check circuit detected a parity error in the receive register.