Answered: Write the instruction to assign high…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write the instruction to assign high value to Pin P0.1?

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Sometimes, rather than using the complete 8 bits of the port, we just need to access 1 or 2 bits. The 8051 chip offers the ability to access specific port bits.

When using a single-bit method to access a port, the syntax "SETB X. Y" can be used where X depicts the port number (0 to 3), and Y denotes a bit number (0 to 7) for the data bits D0-D7, of which D0 is the LSB and D7 is the MSB.
For instance, the command "SETB P1.5" raises bit 5 on port 1.

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