ELEC3300_09_stu

ELEC3300_09_stu - ELEC 3300 Microprocessor Applications...

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ELEC 3300 : Fall 11/12 Tim Woo 1 ELEC 3300 Microprocessor Applications Topic 9 Buffering and Direct Memory Access (DMA) Buffering and Direct Memory Access (DMA) Prof. Tim Woo Prof. Tim Woo
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ELEC 3300 : Fall 11/12 Tim Woo 2 Where we are Timer and Counter Basic Computer Structure Introduction to Microprocessor-based Systems Digital and Analog Interfacing Interrupt Organization Memory, Interfacing to Memory, Memory Timing and applications Motor Interfacing Buffering and Direct Memory Access (DMA) Interfacing LCD Other Serial Bus Interface: IEEE1394, USB, I2C and SPI Serial Communication and RS-232 Standard To be covered In progress Done Microcontroller Structure A/D Port Assembler Instruction Set Architecture Memory I/O System CPU Serial Port External Memory Port Interrupt Port Simple Port In this course, 8051 is used as a driving vehicle for delivering the concepts.
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ELEC 3300 : Fall 11/12 Tim Woo 3 • On successful completion of this topic, you will be able to – Classify three different I/O modules – Describe the basic operations of the three different I/O modules – Understand the hardware configurations of DMA – Illustrate the operation of DMA block transfer mode Expected Outcomes Expected Outcomes
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ELEC 3300 : Fall 11/12 Tim Woo 4 An area of memory that is used to store temporary data What is a buffer? What is a buffer?
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ELEC 3300 : Fall 11/12 Tim Woo 5 The Buffer The Buffer
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ELEC 3300 : Fall 11/12 Tim Woo 6 Concurrency Between I/O and Programs Concurrency Between I/O and Programs How to write a block of data from disk to memory ? - Three different I/O modules Executing Embedded Software Programs C or P Physical View I/O Devices Buffer Memory Programs
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ELEC 3300 : Fall 11/12 Tim Woo 7 I/O Module: Programmed I/O I/O Module: Programmed I/O Issue Read Command to I/O device Read Status of I/O device Check Status Read Word from I/O device Write Word Into Memory Done? Next Instruction
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This note was uploaded on 10/16/2011 for the course ELEC 308,315,10 taught by Professor Prof.shenghuisong during the Spring '11 term at CUHK.

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ELEC3300_09_stu - ELEC 3300 Microprocessor Applications...

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