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Chapter 11 Basic I/O Interface

Chapter 11 Basic I/O Interface

Chapter 11 Basic I/O Interface. Instructor ? Dr. Alex Yu. Content. Introduction to I/O Interface I/O Port Address Decoding The Programmable Peripheral Interface 8254 Programmable Interval Timer 16550 Programmable Communications Interface A/D and D/A Converters. Basic I/O Instructions.

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1.06k views • 56 slides
Serial Communications

Serial Communications

Serial Communications. Introduction to UART and USART Intel 8250 and 8251. Outline. Concept of serial communications Synchronous, Asynchronous RS-232 standard Hand shaking UART and USART chips 8250 and 8251 chips. What is Serial Communication. Serial Communication Types.

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907 views • 51 slides
Example 1

Example 1

Example 1. Program the divisor Latch for 300 baud. Assume Xin=1.8432MHz The Base Address: 0x3F8. 300*384=115200 115200*16=1843200. Example 2. Program the divisor Latch for 2400 baud. Assume Xin=1.8432MHz The Base Address: 0x3F8. 2400*48=115200 115200*16=1843200. Example 3.

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356 views • 26 slides
Modems

Modems

Modems. Chapter 17. Modems are little devices to use the telephone to talk to other computers. Modem is an abbreviation for Modulator/ Demodulator Modems can be internal or external. Basic Knowledge. Modem Signals.

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357 views • 18 slides
Async. modem glossary

Async. modem glossary

Async. modem glossary. CCITT InternationalTelegraph and Telephone Consultative Commitee (now ITU-T ) ITU-T International Telecommuncations Union, Telecommunication Standardization Sector (former CCITT ) V. nn ITU-T (CCITT) recommended standards. modulation standards

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212 views • 3 slides

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