资 源 简 介
1. INTRODUCTION ..................................................................................................... 51.1 General Information ...................................................................................... 52. SYSTEM STARTUP ................................................................................................ 62.1 General Purpose Input / Output Pins (GPIO’s) ........................................... 82.1.1 No Digital I/O Configuration ................................................................... 92.1.1.1 Connect / Disconnect (GP5) ..................................................... 92.1.1.2 Possibilities with function 1 and function 2 ................................ 102.1.2 Four-pins Digital I/O configurations ........................................................ 132.1.2.1 Possibilities with function 1 and function 2 ................................ 132.1.3 Six-pins Digital I/O configurations .......................................................... 142.1.4 Diode Selection ..................................................................................... 152.2 Additional External Circuitry ....................................................................... 172.2.1 Oscillator Circuit ................................................................................... 172.2.2 Coils at the input of the USB ……......................................................... 182.2.3 Coils at the Vdd lines of the UDA1331H …............................................ 183. CONFIGURATION DATA STRUCTURE ................................................................. 193.1 Working with Dynamic Bass Boost (DBB) .................................................. 193.2 Working with Default Volume ...................................................................... 193.3 Product ID (idProduct) and Vendor ID (idVendor) ...................................... 194. CUSTOMIZING YOUR DESIGN .............................................................................. 204.1 Handling Device Configurations ................................................................. 204.2 Configuring the USB-APP……….................................................................. 204.3 The USB-I²C example driver ........................................................................ 215. USB CONTACT ADDRESS ..................................................................................... 226. GLOSSARY ............................................................................................................. 227. FREQUENTLY ASKED QUESTIONS ...................................................................... 238. REFERENCES ......................................................................................................... 27
