VS1011E Datasheet, PDF (47/49 Pages) List of Unclassifed Manufacturers – MPEG AUDIO CODEC

VLSI
Solution ^y
VS1011e
VS1011E
11. VS1011 VERSION CHANGES
11 VS1011 Version Changes
This chapter describes changes between different generations of VS1011.
11.1 Changes Between VS1011b and VS1011e, 2005-07-13
• Faster decoding: all codecs, bitrates and bass + treble controls can be used at CLKI = 24 MHz.
• Register SCI BASS now also has a treble control (Chapter 8.6.3). Loudness plugin not required.
• Can play IMA ADPCM in mono and stereo (Chapter 8.2.4).
• Register space can now be written to with SCI WRAM (Chapter 8.6.7).
• Memory and register space can now be read from with SCI WRAM (Chapter 8.6.7).
• Added optional playback of MPEG 1 and 2 layers I and II. (Chapters 8.2.2, 8.2.1 and 8.6.1).
• SPI Boot added (Chapter 9.4).
• MPEG 1, 2 and 2.5 layer III decoding more robust against bit errors.
• MPEG 2.5 decoding compatibility enhanced.
• DREQ goes down during SCI operations. (Chapter 7.4).
• DREQ goes down during memory test. (Chapter 7.4).
• In VS1011e the SS VER field in SCI STATUS is 2.
• Also SOIC-28 is now a lead-free RoHS-complian package.
11.2 Migration Checklist from VS1011b to VS1011e, 2005-07-13
• The SS VER field in SCI STATUS is 2. You can use SCI STATUS and SCI MODE to distin-
guish between VS1002 and VS1011e. VS1011b has SS VER=1, SM SDINEW=0, VS1011e has
SS VER=2, SM SDINEW=0, and VS1002 has SS VER=2, SM SDINEW=1.
• Use built-in bass enhancer and treble control instead of the Loudness plugin. The loudness plugin
works, but the builtin controls are much faster.
Version 1.04, 2007-10-08
47