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I/O continued . . .
Programming the HC12 ATD System
Serial Data Transfer
- Inter IC bus (I2C)
- Serial Peripheral Interface (SPI)
- Serial Communication Interface (SCI)
Direct Memory Access (DMA)
In this lecture, we discuss concepts related to I/O components. The topics include (1) input/output types, (2) concepts and circuits of various types of I/O, (3) direct memory access concept, and (4) interrupts. Although the implementation of the these I/O components varies among different microprocessors, the design concepts are basically unchanged in the last twenty years.