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This chapter addresses the architecture of Input-Output (I/O) modules, emphasizing their crucial role in enabling communication between peripheral devices and the CPU. It reviews the structure, functions, and design methodologies of various I/O operation modes, including programmed I/O, interrupt-driven I/O, and direct memory access (DMA). The chapter also discusses addressing schemes for I/O devices and the necessity of device controllers to manage these devices effectively.
Chapter 2315 sections
This chapter addresses the architecture of Input-Output (I/O) modules, emphasizing their crucial role in enabling communication between peripheral devices and the CPU. It reviews the structure, functions, and design methodologies of various I/O operation modes, including programmed I/O, interrupt-driven I/O, and direct memory access (DMA). The chapter also discusses addressing schemes for I/O devices and the necessity of device controllers to manage these devices effectively.
I/O modules serve as interfaces between the CPU and peripheral devices, facilitating efficient data transfer.
The design of I/O instructions and addressing schemes are essential for effective I/O operations.
Understanding the different modes of I/O transfer—programmed, interrupt-driven, and DMA—can greatly affect performance and system design.
An interface that connects peripheral devices to the CPU, managing data transfers and communications.
A method of I/O transfer where the CPU is responsible for managing the data transfer process directly.
An I/O transfer method that allows the CPU to be interrupted by devices needing attention, improving efficiency.
A system feature that allows peripherals to transfer data to/from memory without continuous CPU intervention.
A method used to identify and address various I/O devices connected to the CPU.
Total Questions
2
Estimated Time
4 min
Passing Score
70%
1 more question available