ST STM32F405

General-purpose I/Os (GPIO) RM0090
280/1749 RM0090 Rev 18
Table 38. RTC_AF2 pin
Pin configuration and function
Tamper
enabled
Time
stamp
enabled
TAMP1INSEL
TAMPER1
pin selection
TSINSEL
TIMESTAMP
pin
selection
ALARMOUTTYPE
RTC_ALARM
configuration
TAMPER1 input floating 1 0 1 Don’t care Don’t care
TIMESTAMP and TAMPER1 input
floating
11 1 1 Don’t care
TIMESTAMP input floating 0 1 Don’t care 1 Don’t care
Standard GPIO 0 0 Don’t care Don’t care Don’t care