VS1011 Datasheet, PDF (35/43 Pages) List of Unclassifed Manufacturers – MP3 AUDIO CODEC

VLSI
Solution ^y
VS1011 PRELIMINARY
VS1011
10. VS1011 REGISTERS
10 VS1011 Registers
10.1 Who Needs to Read This Chapter
User software is required when a user wishes to add some own functionality like DSP effects or tone
controls to VS1011.
However, most users of VS1011 don’t need to worry about writing their own code, or about this chapter,
including those who only download software plug-ins from VLSI Solution’s Web site.
10.2 The Processor Core
VS DSP is a 16/32-bit DSP processor core that also had extensive all-purpose processor features. VLSI
Solution’s free VSKIT Software Package contains all the tools and documentation needed to write, sim-
ulate and debug Assembly Language or Extended ANSI C programs for the VS DSP processor core.
VLSI Solution also offers a full Integrated Development Environment VSIDE for full debug capabilities.
10.3 VS1011 Memory Map
VS1011’s Memory Map is shown in Figure 12.
10.4 SCI Registers
SCI registers described in Chapter 8.6 can be found here between 0xC000..0xC00F. In addition to these
registers, there is one in address 0xC010, called SPI CHANGE.
SPI registers, prefix SPI
Reg Type Reset Abbrev[bits]
Description
0xC010 r 0
CHANGE[5:0]
Last SCI access address.
Name
SPI CH WRITE
SPI CH ADDR
SPI CHANGE bits
Bits Description
4 1 if last access was a write cycle.
3:0 SPI address of last access.
Version 0.71, 2004-07-20
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