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SRAM with Hardware parity checking: What's that?

Question asked by bil.til on Jul 23, 2013
Latest reply on Jul 24, 2013 by Amel N
In the summary for the STM32F050C4 device (and also for other STM32F0 devices, e. g. STM32F030), I find the statement:
"4 Kbytes of SRAM with HW parity checking"

This term also appears in the summary list at the beginning of the datasheets. But if I search for "HW parity" or "hardware parity" in the reference manual, I get hits only in the UART description.

Anybody knows, what this "HW parity checking" means, how it works, and whether it is also available in higher devices like STM32F4?