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21020285 D User’s Guide
Chapter 4 Command Operation
Page 4 - 2 Introduction
Introduction
The purpose of this chapter is to provide a comprehensive view of the RF3880
firmware operation and how it works with the hardware described in Chapter
2. By explaining the command structures and when to use them, this chapter
explains how to use the board and it explains in general terms what a board
driver must do.
Summary
This chapter discusses the following:
• Format of the basic Parameter and Status blocks from which command
structures are built.
• Types of command structures—Single Command and Command List.
• The process for issuing a single command.
• The process for creating and starting a command list.
• Examples of both types of command structures.
• Implementation of the command structures within a ‘C’ routine.
• Types of commands you can issue—Pass-through and adapter Board-
control commands.
• When to use each type of command.
The explanations in this chapter are most helpful to anyone designing a driver
for the RF3880 adapter or attempting to understand an existing driver for the
RF3500 family of adapters.