CS 2734
Computer Organization II
Lecture 26: I/O
- 10/25/96
(Read Paul Chapter 10 and Tanenbuam Chapter 5.4.7)
- I/O on the SPARC is memory mapped
- A simple character device - Example of CRT output.
- Block devices and directory devices.
- Interrupt driven I/O.
- Role of the operating system
- How interrupts are handled on the Sparc.
- More generally - four types of I/O:
- Programmed I/O with busy waiting
- Interrupt Driven I/O
- DMA I/O
- I/O with data channels