STM32F103

memory map

• Four masters:

– Cortex® -M3 core DCode bus (D-bus) and System bus (S-bus)
– GP-DMA1 & 2 (general-purpose DMA)

• Four slaves:

– Internal SRAM

　　The STM32F10xxx features up to 96 Kbytes of static SRAM. It can be accessed as bytes, half-words (16 bits) or full words (32 bits). The SRAM start address is 0x2000 0000.
– Internal Flash memory 

For XL-density devices: density of up to 1 Mbyte with dual bank architecture for readwhilewrite (RWW) capability:

– bank 1: fixed size of 512 Kbytes
– bank 2: up to 512 Kbytes

For other devices: density of up to 512 Kbytes

– FSMC
– AHB to APBx (APB1 or APB2), which connect all the APB peripherals

block diagram

clock tree

pin defination