Core and bus clock generation
Maximum clock frequency for peripherals
AXI Interconnect
Peripheral and buses
Example of System Clock configuration
The SystemClock_Config() function is used to configure the
system clock for STM32H743xx Devices :
-The CPU at 400MHz
-The HCLK for D1 Domain AXI and AHB3 peripherals , D2 Domain
AHB1/AHB2 peripherals and D3 Domain AHB4
peripherals at 200MHz.
-The APB clock dividers for D1 Domain APB3 peripherals, D2
Domain APB1 and APB2 peripherals and D3 Domain APB4 peripherals to run at 100MHz.
References