The new appnote corrects an error in how to read the DREQ pin status with software.

The VS1053 Playback and Recording AppNote v1.03 is a minor bugfix to the previous release: recording Pause Key 'p' has been removed from the user interface because that was a VS1063-only feature.

The VS1063 Datasheet, VS1063 Hardware Guide, and VS1063 Programmer's Guide have been updated to version 1.02.

VS1053b and VS8053b Datasheet have been updated to v1.20. The new version explains the VSx053 hardware in more detail.

The new Migration Guides present summaries of things, both in hardware as well as microcontroller software, that you need to change when redesigning for a newer VS10xx IC. The two new guides are:

• VS1011 to VS1063 Migration Guide
• VS1003 to VS1063 Migration Guide

Four other migration guides have also been updated:

• VS1011 to VS1003 Migration Guide
• VS1011 to VS1053 Migration Guide
• VS1003 to VS1053 Migration Guide
• VS1053 to VS1063 Migration Guide

The new AppNotes show in generic microcontroller C code how to control VS1011 playback and VS1003 playback and recording. This should make it easier and faster to learn the ins and outs of controlling VS1011 and VS1053.

Corresponding AppNotes for VS1053 and VS1063 have also been updated.

The new header file is intended to be used as a microcontroller include file. It defines all user registers for VS1063, VS1053, VS1033, VS1003, VS1103, and VS1011.