'Dma' diaporamas de présentation

Chapter 13: Direct Memory Access and DMA-Controlled I/O

Chapter 13: Direct Memory Access and DMA-Controlled I/O. Introduction. The DMA I/O technique provides d irect a ccess to the m emory while the microprocessor is temporarily disabled.

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EDMA3, QDMA and IDMA for the Keystone Platform

EDMA3, QDMA and IDMA for the Keystone Platform. Outline. Introduction to EDMA3 Example 1: Single Block Transfer Programming EDMA3 with CSL 3.0 Example 2: Multiple Block Transfer Linking vs. Chaining QDMA IDMA. Why Use DMA?. D0. buf_0. buf_1. D1. D2. D3.

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EDMA3, QDMA and IDMA for the Keystone Platform

EDMA3, QDMA and IDMA for the Keystone Platform. Outline. Introduction to EDMA3 Example 1: Single Block Transfer Programming EDMA3 with CSL 3.0 Example 2: Multiple Block Transfer Linking vs. Chaining QDMA IDMA. Why Use DMA?. D0. buf_0. buf_1. D1. D2. D3.

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? 4 ? S3C44B0X ???????

? 4 ? S3C44B0X ???????. ??????? S3C44B0X ?????????????????????? 1. ????? 2. ??????? 3. ???? 4.DMA ? I/O ?????? A/D ? I2C ? SPI ?????. 4.3 ???????. 4.3.1 ??

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DMA

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ORG ; FIFTEEN

Dec Hex Bin. 15 F 00001111. ORG ; FIFTEEN. DIRECT MEMORY ACCESS AND DMA CHANNELS IN x86 PC. OBJECTIVES this chapter enables the student to:. Describe the concept of DMA, direct memory accessing. List the pins of the 8237A DMA chip and describe their functions.

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Chapter 13

Chapter 13. Direct Memory Access and DMA-Controlled I/O Barry B. Brey bbrey@ee.net. DMA. Direct Memory Access (DMA) is a method whereby the memory and I/O space of the microprocessor can be accessed directly without the intervention of the microprocessor or a program.

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William Stallings Computer Organization and Architecture 7 th Edition

William Stallings Computer Organization and Architecture 7 th Edition. Chapter 7 Input/Output James Chung Andrew Rosales JB Monteleone. What is an I/O Module?.

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William Stallings Computer Organization and Architecture 7 th Edition

William Stallings Computer Organization and Architecture 7 th Edition. Group 7 Rose Pereira Andres Pena Bismarck Sylne Christian Diaz. Chapter 7 Input/Output. I/O Modules. Third key element of a computer system. Function. Why do we need I/O Modules?. Wide variety of peripherals

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DMA

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? 6 ? ?? / ??

? 6 ? ?? / ??. 40. 1. A 7. IOR. IOW. A 6. 39. 2. 38. 3. A 5. A 4. 37. 4. 36. Note1. 5. EOP. READY. A 3. 35. 6. A 2. 34. HLDA. 7. MEMR. MEMW. A 1. 33. 8. ADSTB. AEN. 32. 9. A 0. HRQ. V cc. 31. 10. CS. 8237. 30. 11. DB 0. CLK. 29. 12. DB 1. 28.

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DMA Driver APIs

DMA Driver APIs. DMA State Diagram Loading Driver and Opening Channel DMA Channel Attributes Loading Data to a Channel Unloading Data from a Channel. DMA Driver State Diagram. dmaLoadDriver(). Idle. dmaCloseChannel(). dmaUnloadChannel(). dmaOpenChannel(). dmaCloseChannel(). Enabled.

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Lecture 4-3 DMA

Lecture 4-3 DMA. DMA Next Lecture Buses Standard I/O Interface. Speed of a Computer. CPU speed Number of instructions per second Data transfer speed Number of bytes per second Data transfer between CPU and memory Memory and memory Memory and I/O Response time (Latency)

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Counter Fraud Lessons Learned from the Floods

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Unit - 2

Unit - 2. DMA 8237A-5. Basic DMA operation:. The direct memory access (DMA) I/O technique provides direct access to the memory while the microprocessor is temporarily disabled. A DMA controller temporarily borrows the address bus, data

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BELGAUM DIVISION MUNICIPAL REFORM PROJECTS REVIEW MEETING ON 28-11-2012 BY COMMISSIONER, DMA

BELGAUM DIVISION MUNICIPAL REFORM PROJECTS REVIEW MEETING ON 28-11-2012 BY COMMISSIONER, DMA. PTIS ISSUES. Issues related to Asset Management.

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CPE 323 Introduction to Embedded Computer Systems: DMA Controller

CPE 323 Introduction to Embedded Computer Systems: DMA Controller. Instructor: Dr Aleksandar Milenkovic Lecture Notes. Outline. MSP430: System Architecture ADC12 Module DAC12 Module. DMA Controller Introduction.

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7.2 Peripheral Supplementary 2

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Network Coprocessor (NETCP) Overview

Network Coprocessor (NETCP) Overview. Agenda. What is NETCP? Purpose of the NETCP NETCP Block Diagram Internet Protocol Classification Levels Communication with the NETCP. NETCP Subsystem Overview. What is NETCP? Purpose of the NETCP NETCP Block Diagram

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Chapter 13-14 DMA Controller & The Arithmetic Coprocessor

Chapter 13-14 DMA Controller & The Arithmetic Coprocessor. Instructor ? Dr. Yu Youling. Content. Basic DMA Operation The 8237 DMA Controller Shared BUS Operation Data Formats for the Arithmetic Coprocessor The 80X87 Architecture Instruction Sets Programming with the Arithmetic Coprocessor

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