AN230 Datasheet, PDF (1/42 Pages) Silicon Laboratories – Device initialization sequence and busmode selection

AN230
Si4700/01/02/03 PROGRAMMING GUIDE
1. Introduction
1.1. Scope
This document applies to Si4700/01/02/03 firmware revision 15 and greater and example code version 2 and
greater. Refer to www.mysilabs.com for example code.
1.2. Purpose
The purpose of this programming guide is to describe the following:
 Device initialization sequence and busmode selection
 2-wire and 3-wire busmodes
 Step-by-step procedures for
setting default configuration
channel selection
seek up/seek down
RDS/RBDS
This document references the Si4700/01 and Si4702/03 data sheets.
1.3. Terminology
SENB or SEN—serial enable pin, active low, used only for 3-wire operation
SDIO—serial data in/data out pin.
SCLK—serial clock pin.
RSTB or RST—reset pin, active low
Device—refers to the Si4700/01/02/03
Rev. 0.9 6/09
Copyright © 2009 by Silicon Laboratories
AN230