VS1011E Datasheet, PDF (30/49 Pages) List of Unclassifed Manufacturers – MPEG AUDIO CODEC

VLSI
Solution ^y
VS1011e
VS1011E
8. FUNCTIONAL DESCRIPTION
8.6.1 SCI MODE (RW)
SCI MODE is used to control operation of VS1011e.
Bit Name
Function
Value Description
0 SM DIFF
Differential
0 normal in-phase audio
1 left channel inverted
1 SM LAYER12
Allow MPEG layers I & II 0 no
1 yes
2 SM RESET
Soft reset
0 no reset
1 reset
3 SM OUTOFWAV Jump out of WAV decoding 0 no
1 yes
4 SM SETTOZERO1 set to zero
0 right
1 wrong
5 SM TESTS
Allow SDI tests
0 not allowed
1 allowed
6 SM STREAM
Stream mode
0 no
1 yes
7 SM SETTOZERO2 set to zero
0 right
1 wrong
8 SM DACT
DCLK active edge
0 rising
1 falling
9 SM SDIORD
SDI bit order
0 MSb first
1 MSb last
10 SM SDISHARE Share SPI chip select
0 no
1 yes
11 SM SDINEW
VS1002 native SPI modes
0 no
1 yes
12 SM SETTOZERO3 set to zero
0 right
1 wrong
13 SM SETTOZERO4 set to zero
0 right
1 wrong
When SM DIFF is set, the player inverts the left channel output. For a stereo input this creates a virtual
surround, and for a mono input this effectively creates a differential left/right signal.
SM LAYER12 determines whether it is allowed to decode MPEG 1 and 2 layers I and II in addition to
layer III. If you enable Layer I and Layer II decoding, you are liable for any patent issues that may
arise. Joint licensing of MPEG 1.0 / 2.0 Layer III does not cover all patents pertaining to layers I and II.
By setting SM RESET to 1, the player is software reset. This bit clears automatically.
When the user decoding a WAV file wants to get out of the file without playing it to the end, set
SM OUTOFWAV, and send zeros to VS1002e until SM OUTOFWAV is again zero. If the user doesn’t
want to check SM OUTOFWAV, send 128 zeros.
If SM TESTS is set, SDI tests are allowed. For more details on SDI tests, look at Chapter 9.7.
Version 1.04, 2007-10-08
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