Chapter 10: 8051 SERIAL COMMUNICATION

10/19/13
10/19/13
Microcomputers and Microprocessors
Microcomputers and Microprocessors
NATIONAL TAIWAN
NATIONAL TAIWAN
OCEAN UNIVERSITY
OCEAN UNIVERSITY
國立台灣海洋大學
國立台灣海洋大學
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2002 MuDer Jeng
2002 MuDer Jeng
Chapter 10
Chapter 10
8051 SERIAL
8051 SERIAL
COMMUNICATION
COMMUNICATION

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2002 MuDer Jeng
Outlines
Outlines
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Contrast and compare serial versus parallel
Contrast and compare serial versus parallel
communication

communication
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List the advantages of serial communication
List the advantages of serial communication
over parallel
over parallel
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Explain serial communication protocol
Explain serial communication protocol
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Contrast synchronous versus asynchronous
Contrast synchronous versus asynchronous
communication
communication
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Contrast half-versus full-duplex transmission
Contrast half-versus full-duplex transmission

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2002 MuDer Jeng
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Explain the process of data framing
Explain the process of data framing
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Describe data transfer rate and bps rate
Describe data transfer rate and bps rate
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Define the RS232 standard

Define the RS232 standard
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Explain the use of the MAX232 and MAX233 chips
Explain the use of the MAX232 and MAX233 chips
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Interface the 8051 with an RS232 connector
Interface the 8051 with an RS232 connector
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Discuss the baud rate of the 8051
Discuss the baud rate of the 8051
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Describe serial communication features of the 8051
Describe serial communication features of the 8051
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Program the 8051 for serial data communication
Program the 8051 for serial data communication

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Basics of serial communication
Basics of serial communication

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Start and stop bits
Start and stop bits

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RS232 pins
RS232 pins

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Data communication classification
Data communication classification

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2002 MuDer Jeng
RxD and TxD pins in the 8051
RxD and TxD pins in the 8051
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TxD pin 11 of the 8051 (P3.1)
TxD pin 11 of the 8051 (P3.1)
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RxD pin 10 of the 8051 (P3.0)
RxD pin 10 of the 8051 (P3.0)

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2002 MuDer Jeng
MAX232
MAX232

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MAX233
MAX233