Memory mapping
STM32F103xx
22/67
4 Memory
mapping
The memory map is shown in
Figure 6.
Memory map
reserved
1 Kbit
0x4000 0000
0x4000 0400
0x4000 0800
0x4000 0C00
0x4000 2800
0x4000 2C00
0x4000 3000
0x4000 3400
0x4000 3800
0x4000 3C00
0x4000 4400
0x4000 4800
0x4000 4C00
0x4001 0C00
0x4001 1000
0x4001 1400
0x4001 1800
0x4002 1400
APB memory space
DMA
0x4002 1000
TIM2
Reserved
0x4001 0800
0x4001 1C00
0x4001 2400
0x4001 2800
0x4001 2C00
0x4001 3000
0x4001 3400
0x4001 3800
TIM3
TIM4
reserved
RTC
WWDG
IWDG
reserved
SPI2
USART2
USART3
AFIO
Port A
Port C
Port D
reserved
ADC1
reserved
USART1
reserved
0x4002 0400
0x4002 0000
0x4001 3C00
0x4000 5400
0x4000 5800
reserved
ADC2
TIM1
SPI1
reserved
I2C1
BKP
0x4000 6000
0x4000 5C00
1 Kbit
35 Kbits
1 Kbit
1 Kbit
2 Kbits
1 Kbit
1 Kbit
2 Kbits
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
7 Kbits
1 Kbit
Port E
PWR
Port B
1 Kbit
1 Kbit
1 Kbit
3 Kbits
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
2 Kbits
1 Kbit
1 Kbit
1 Kbit
I2C2
reserved
bxCAN
EXTI
reserved
RCC
reserved
Flash Interface
reserved
reserved
reserved
0x4000 6400
0x4000 6800
0x4000 6C00
0x4000 7000
0x4000 7400
0x4001 0000
0x4001 0400
0x4002 2000
0x4002 2400
0x4002 3000
0x4002 3400
0x6000 0000
0xE010 0000
reserved
0xFFFF FFFF
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
1 Kbit
3 Kbits
1 Kbit
3 Kbits
1 Kbit
4 Kbits
USB Registers
reserved
0
1
2
3
4
5
6
7
0x2000 0000
0x4000 0000
0x6000 0000
0x8000 0000
0xA000 0000
0xC000 0000
0xE000 0000
0xFFFF FFFF
0x0000 0000
CODE
0xFFFF F000
PERIPHERALS
SRAM
FLASH
reserved
reserved
0x0800 0000
0x0801 FFFF
0x1FFF F000
0x1FFF FFFF
SYSTEM MEMORY
OPTION BYTES
0x1FFF F800
0x1FFF F9FF
Cortex-M3 Internal
Peripherals
0xE010 0000
ai14394
shared 512 byte
USB/CAN SRAM