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STM32F769AI 数据表(PDF) 22 Page - STMicroelectronics |
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STM32F769AI 数据表(HTML) 22 Page - STMicroelectronics |
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22 / 255 page  Functional overview STM32F765xx STM32F767xx STM32F768Ax STM32F769xx 22/255 DocID029041 Rev 4 2.6 AXI-AHB bus matrix The STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx system architecture is based on 2 sub-systems: • An AXI to multi AHB bridge converting AXI4 protocol to AHB-Lite protocol: – 3x AXI to 32-bit AHB bridges connected to AHB bus matrix – 1x AXI to 64-bit AHB bridge connected to the embedded Flash memory • A multi-AHB Bus-Matrix – The 32-bit multi-AHB bus matrix interconnects all the masters (CPU, DMAs, Ethernet, USB HS, LCD-TFT, and DMA2D) and the slaves (Flash memory, RAM, FMC, Quad-SPI, AHB and APB peripherals) and ensures a seamless and efficient operation even when several high-speed peripherals work simultaneously. Figure 3. STM32F765xx, STM32F767xx, STM32F768Ax and STM32F769xx AXI-AHB bus matrix architecture(1) 1. The above figure has large wires for 64-bits bus and thin wires for 32-bits bus. |
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