VS1033 - MP3/AAC/WMA/MIDI AUDIO CODEC - VLSI Solution

VLSISolution yVS1033cVS1033C10. VS1033 REGISTERS10 VS1033 Registers10.1 Who Needs to Read This ChapterUser software is required when a user wishes to add some own functionality like DSP effects to VS1033.However, most users of VS1033 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 CoreVS DSP is a 16/32-bit DSP processor core that also had extensive all-purpose processor features. VLSISolution’s free VSKIT Software Package contains all the tools and documentation needed to write, simulateand 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 VS1033 Memory MapVS1033’s Memory Map is shown in Figure 16.10.4 SCI RegistersSCI registers described in Chapter 8.7 can be found here between 0xC000..0xC00F. In addition to theseregisters, there is one in address 0xC010, called SCI CHANGE.SCI registers, prefix SCIReg Type Reset Abbrev[bits] Description0xC010 r 0 CHANGE[5:0] Last SCI access addressSCI CHANGE bitsName Bits DescriptionSCI CH WRITE 4 1 if last access was a write cycleSCI CH ADDR 3:0 SCI address of last access10.5 Serial Data RegistersSDI registers, prefix SERReg Type Reset Abbrev[bits] Description0xC011 r 0 DATA Last received 2 bytes, big-endian0xC012 w 0 DREQ[0] DREQ pin controlVersion 1.00, 2008-02-01 59