53.6.3 Output Masking Period

As soon as the analog comparator settings change, the output is invalid for a duration depending on ISEL current.

A masking period is automatically triggered as soon as a write access is performed on the ACC_MR or ACC Analog Control Register (ACC_ACR) (regardless of the register data content).

When ISEL = 0, the mask period is 8 × t_{peripheral clock}.

When ISEL = 1, the mask period is 128 × t_{peripheral clock}.

The masking period is reported by reading a negative value (bit 31 set) on the ACC Interrupt Status Register (ACC_ISR).