Datasheet

STM32F051x Memory mapping
Doc ID 022265 Rev 3 37/105
APB
0x4000 7C00 - 0x4000 7FFF 1KB Reserved
0x4000 7800 - 0x4000 7BFF 1KB CEC
0x4000 7400 - 0x4000 77FF 1KB DAC
0x4000 7000 - 0x4000 73FF 1KB PWR
0x4000 5C00 - 0x4000 6FFF 5KB Reserved
0x4000 5800 - 0x4000 5BFF 1KB I2C2
0x4000 5400 - 0x4000 57FF 1KB I2C1
0x4000 4800 - 0x4000 53FF 3 KB Reserved
0x4000 4400 - 0x4000 47FF 1KB USART2
0x4000 3C00 - 0x4000 43FF 2KB Reserved
0x4000 3800 - 0x4000 3BFF 1KB SPI2
0x4000 3400 - 0x4000 37FF 1KB Reserved
0x4000 3000 - 0x4000 33FF 1KB IWDG
0x4000 2C00 - 0x4000 2FFF 1KB WWDG
0x4000 2800 - 0x4000 2BFF 1KB RTC
0x4000 2400 - 0x4000 27FF 1KB Reserved
0x4000 2000 - 0x4000 23FF 1KB TIM14
0x4000 1400 - 0x4000 1FFF 3KB Reserved
0x4000 1000 - 0x4000 13FF 1KB TIM6
0x4000 0800 - 0x4000 0FFF 2KB Reserved
0x4000 0400 - 0x4000 07FF 1KB TIM3
0x4000 0000 - 0x4000 03FF 1KB TIM2
Table 16. STM32F051x peripheral register boundary addresses (continued)
Bus Boundary address Size Peripheral