Data Sheet

ManualsBrandsSparkfun Electronics ManualsAudio SynthesisMP3 Trigger v2.4

PRELIMINARY

VS1063a Datasheet

9 FUNCTIONAL DESCRIPTION

9.8.1 SCI_MODE (RW)

SCI_MODE is used to control the operation of VS1063a and defaults to 0x0800 (SM_SDINEW

set).

Note: “Mode” in the following table tells if that bit is a hardware (HW) or software (SW) control.

Name Bit Mode Function Value Description

SM_DIFF 0 SW Differential 0 normal in-phase audio

1 left channel inverted

SM_LAYER12 1 SW Allow MPEG layer II 0 no

1 yes

SM_RESET 2 SW Soft reset 0 no reset

1 reset

SM_CANCEL 3 SW Cancel decoding current ﬁle 0 no

1 yes

4 SW reserved 0 right

1 wrong

SM_TESTS 5 SW Allow SDI tests 0 not allowed

1 allowed

6 SW reserved 0 right

1 wrong

7 SW reserved 0 right

1 wrong

SM_DACT 8 HW DCLK active edge 0 rising

1 falling

SM_SDIORD 9 HW SDI bit order 0 MSb ﬁrst

1 MSb last

SM_SDISHARE 10 HW Share SPI chip select 0 no

1 yes

SM_SDINEW 11 HW VS10xx native SPI modes 0 no

1 yes

SM_ENCODE 12 SW Activate Encoding 0 no

1 yes

- 13 SW - 0 right

1 wrong

SM_LINE1 14 HW MIC / LINE1 selector 0 MICP

1 LINE1

SM_CLK_RANGE 15 HW Input clock range 0 12. . . 13 MHz

1 24. . . 26 MHz

When SM_DIFF is set, the player inverts the left channel output. For a stereo input this creates

virtual surround, and for a mono input this creates a differential left/right signal.

SM_LAYER12 enables MPEG 1.0 and 2.0 layer II decoding in addition to layer III. If you enable

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.

Software reset is initiated by setting SM_RESET to 1. This bit is cleared automatically.

If you want to stop decoding a in the middle, set SM_CANCEL, and continue sending data

Version: 0.42, 2011-11-24 40