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ST STM32F0 Series User Manual

ST STM32F0 Series
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Core peripherals PM0215
80/91 Doc ID 022979 Rev 1
4.3.3 Application interrupt and reset control register (AIRCR)
Address offset: 0x0C
Reset value: 0xFA05 0000
The AIRCR provides endian status for data accesses and reset control of the system.
To write to this register, you must write 0x5FA to the VECTKEY field, otherwise the
processor ignores the write.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved(read)/ VECTKEY[15:0](write)
rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
1514131211109876543210
ENDIA
NESS
Reserved
SYS
RESET
REQ
VECT
CLR
ACTIVE
Reserv
ed
r ww
Bits 31:16 Reserved / VECTKEY Register key
Reads as unknown
On writes, write 0x5FA to VECTKEY, otherwise the write is ignored.
Bit 15 ENDIANESS Data endianness bit
Reads as 0.
0: Little-endian
Bits 14:3 Reserved, must be kept cleared
Bit 2 SYSRESETREQ System reset request
Reads as 0.
0: No system reset request
1: Asserts a signal to the outer system that requests a reset.
Bit 1 VECTCLRACTIVE
Reserved for Debug use. This bit reads as 0. When writing to the register you must write 0 to
this bit, otherwise behavior is unpredictable.
Bit 0 Reserved, must be kept cleared

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ST STM32F0 Series Specifications

General IconGeneral
SeriesSTM32F0
CoreARM Cortex-M0
Operating FrequencyUp to 48 MHz
Flash Memory16 KB to 256 KB
SRAM4 KB to 32 KB
ADC Resolution12-bit
ADC ChannelsUp to 16
Operating Voltage2.0 V to 3.6 V
DAC Resolution12-bit (some series)
Communication InterfacesI2C, SPI, USART, USB, CAN
Operating Temperature-40°C to 85°C
Package OptionsLQFP, TSSOP, UFQFPN, WLCSP

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