Over at John McCalpin’s Blog, “Dr. Bandwidth” has posted an in-depth look at memory-mapped IO (MMIO). For tightly-coupled acceleration, it would be nice to have the option of having the processor ...

The transfer of data to and from peripheral devices in Windows PCs. The first PCs used port-mapped I/O (PMIO) addressing, which used an address space separate from main memory to read and write ...

Back in June of 2022, Intel and Microsoft issued a warning about security vulnerabilities related to the CPU's memory-mapped I/O (MMIO), which are called "MMIO Stale Data Vulnerabilities" collectively ...

The FTMCTRL can handle four types of devices: PROM, asynchronous static ram (SRAM), synchronous dynamic ram (SDRAM) and memory mapped I/O devices (I/O ...