This application note presents the Direct Memory Access (DMA) control, its basic set-up and operations. The document includes the usage examples of the DMA controller and the DMA Trigger Factor ...

一般情况下，计算机在开机时会由UEFI（Unified Extensible Firmware Interface）固件与IOMMU（Input–Output Memory Management Unit）先行创建基本防护，避免支持直接内存访问（Di ...

Last time, in Part 1, we introduced somebasics behind Direct Memory Access (DMA) -why it's needed, and how it's structured and controlled. This time,we'll focus on the classifications of DMA transfers ...

Transferring large blocks of data within memory as well as to and from peripherals. Direct memory access (DMA) avoids loading the CPU's register with small amounts of data from memory and storing them ...

For memory-intensive and high-performance computing, direct memory access (DMA) is indispensable. A typical DMA operation in PCI Express (PCIe) entails the transfer of data from the system memory to ...

Here’s the thing about coding. When you’re working on embedded projects, it’s quite easy to run into hardware limitations, and quite suddenly, too. You find yourself desperately trying to find a way ...

Now that there are embedded media processors available that can handle both MCU and DSP tasks, C programmers who are very familiar with the MCU model of application development are transitioning into ...

Direct memory access (DMA) systems in computers are more powerful than you might think, and [Bruce Land] and [Joseph Primmer] have done some clever hacking to take full advantage of this on the PIC32 ...

UEFI flaw leaves ASUS, Gigabyte, MSI, and ASRock motherboards exposed to DMA attacks Firmware falsely reports IOMMU protection enabled, allowing malicious PCIe devices pre‑boot access Riot Games ...

Modern computers that come with a Thunderbolt interface and run Windows, macOS, Linux, or FreeBSD are vulnerable to a range of Direct Memory Access (DMA) attacks performed by potential attackers with ...

And it's because of pesky DMA protections not being triggered to help out add-in PCIe cards. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.