Expand description
RTC alarm A sub second register
Structs
Type Definitions
Field MASKSS
reader - Mask the most-significant bits starting at this bit 2: SS[14:2]
are don’t care in alarm A comparison. Only SS[1:0]
are compared. 3: SS[14:3]
are don’t care in alarm A comparison. Only SS[2:0]
are compared. … 12: SS[14:12]
are don’t care in alarm A comparison. SS[11:0]
are compared. 13: SS[14:13]
are don’t care in alarm A comparison. SS[12:0]
are compared. 14: SS[14]
is don’t care in alarm A comparison. SS[13:0]
are compared. 15: All 15 SS bits are compared and must match to activate alarm. The overflow bits of the synchronous counter (bits 15) is never compared. This bit can be different from 0 only after a shift operation. Note: The overflow bits of the synchronous counter (bits 15) is never compared. This bit can be different from 0 only after a shift operation.
Field MASKSS
writer - Mask the most-significant bits starting at this bit 2: SS[14:2]
are don’t care in alarm A comparison. Only SS[1:0]
are compared. 3: SS[14:3]
are don’t care in alarm A comparison. Only SS[2:0]
are compared. … 12: SS[14:12]
are don’t care in alarm A comparison. SS[11:0]
are compared. 13: SS[14:13]
are don’t care in alarm A comparison. SS[12:0]
are compared. 14: SS[14]
is don’t care in alarm A comparison. SS[13:0]
are compared. 15: All 15 SS bits are compared and must match to activate alarm. The overflow bits of the synchronous counter (bits 15) is never compared. This bit can be different from 0 only after a shift operation. Note: The overflow bits of the synchronous counter (bits 15) is never compared. This bit can be different from 0 only after a shift operation.
Field SS
reader - Sub seconds value This value is compared with the contents of the synchronous prescaler counter to determine if alarm A is to be activated. Only bits 0 up MASKSS-1 are compared.
Field SS
writer - Sub seconds value This value is compared with the contents of the synchronous prescaler counter to determine if alarm A is to be activated. Only bits 0 up MASKSS-1 are compared.