EL31P Serial Reference

THE UART.... DIAGRAM and TEXT

The Terminal Program Listing

Some information on the Serial Port

the FORMAT for serial characters

PIN IDENTIFICATION on serial port connectors

the REGISTERS of the UART

the LINE STATUS, MODEM STATUS layout & REGISTER SETUP for BIOS CALLS

the LINE CONTROL layout

the MODEM CONTROL layout

the INTERRUPT ENABLE layout

the INTERRUPT IDENTIFICATION layout

the REGISTERS I/O address block

BIOS CALL functions

the INTERRUPTS of the UART

BAUD RATE DIVISOR table

MANY THANKS to the following sources for these Diagrams:

SERIAL PORT COMPLETE by Jan Axelson (Lakeview Research, Madison, WI 53704)

8088 Assembler Language Programming: The IBM PC by David Willen & Jeffrey Krantz (Howard W. Sams & Co., a division of Macmillan)


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