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Published byMorgan Rose Modified over 9 years ago
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CHAPTER 10 Keyboard and Printer Interfacing
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Matrix Keyboard
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Flowchart
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Keyboard Serial Transmission Format
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Make and Break
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PC Scan Codes for PC/XT
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Combination Key Scan Codes for PC/XT
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Extended Keyboard Scan Codes
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Keyboard Status Bytes
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Keyboard Cable Jack for PC
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INT 09
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INT 09 Summary
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Keyboard Buffer
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INT 09H Routine
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INT 16H (part 1)
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INT 16H (part 2)
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PRINTER INTERFACE
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DB25 (Male) Printer Connector
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Centronics Printer Interface Specs
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Timing Diagram for Printer
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LPT Base Addresses
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PC Printer Ports and Functions
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Data, Status, and Control Ports
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BIOS INT 17H
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BIOS INT 17H (continued)
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Inner workings of INT 17H
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SPP
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EPP
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ECP
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Buffering Data and Control Ports
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Connecting to a LCD Module
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Connecting a Stepper Motor to a Parallel Port
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Buffering LPTs Data Port
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LPT I/O Address
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Printer Control Characters
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Review (1)
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Review (2)
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Review (3)
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