US 12,461,149 B2
Error diagnosis circuit and method for operating a device
Veit Kleeberger, Munich (DE); and Rafael Zalman, Markt Schwaben (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Oct. 3, 2022, as Appl. No. 17/937,585.
Claims priority of application No. 102021126122.8 (DE), filed on Oct. 8, 2021.
Prior Publication US 2023/0116822 A1, Apr. 13, 2023
Int. Cl. G01R 31/3185 (2006.01); G01R 31/317 (2006.01)
CPC G01R 31/318558 (2013.01) [G01R 31/31705 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An error diagnosis circuit, comprising:
a signal input component, for connection to a communication interface, configured to receive a first instruction, comprising a first address associated with a device, and a second instruction, comprising the first address associated with the device; and
a circuit, within the error diagnosis circuit, comprising:
a first flip-flop component configured to store the first instruction,
a second flip-flop component configured to store the second instruction, and
an exclusive OR gate configured to:
compare the first instruction and the second instruction, and
output an error signal when the first instruction is different from the second instruction,
wherein the error diagnosis circuit is used only to detect an error associated with the error signal.