DocID018909 Rev 11 307/1731
RM0090 DMA controller (DMA)
340
Figure 33. System implementation of the two DMA controllers
(STM32F405xx/07xx and STM32F415xx/17xx )
1. The DMA1 controller AHB peripheral port is not connected to the bus matrix like DMA2 controller. As a result, only DMA2
streams are able to perform memory-to-memory transfers.
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$-!CONTROLLER
!("PERIPH
!RBITER
!("MEMORY
&)&/
$-!CONTROLLER
!("MEMORY
"USMATRIX
!("
!RBITER
!("PERIPH
-!00).'
&)&/
%XTERNALMEMORY
&LASH
MEMORY
+"32!-
!("PERIPHERALS
MULTILAYER
!("!0"
BRIDGE
DUAL!("
!0"
!0"
!("!0"
BRIDGE
DUAL!("
!0"
!0"
PERIPHERALS
!("SLAVE
!("SLAVE
PORT
PORTPORT
PORT
CONTROLLER&3-#
$-!REQUEST
PERIPHERALS
+"32!-
!("PERIPHERALS
4O!("
PERIPHERALS
4O!("
PERIPHERALS
$#/$%
)#/$%