VS1053B Datasheet, PDF (36/79 Pages) List of Unclassifed Manufacturers – Ogg Vorbis/MP3/AAC/WMA/MIDI AUDIO CODEC

VLSI
Solution ^y
VS1053b preliminary
VS1053B
8. FUNCTIONAL DESCRIPTION
8.5 Serial Data Interface (SDI)
The serial data interface is meant for transferring compressed data for the different decoders of VS1053b.
If the input of the decoder is invalid or it is not received fast enough, analog outputs are automatically
muted.
Also several different tests may be activated through SDI as described in Chapter 9.
8.6 Serial Control Interface (SCI)
The serial control interface is compatible with the SPI bus specification. Data transfers are always 16
bits. VS1053b is controlled by writing and reading the registers of the interface.
The main controls of the serial control interface are:
• control of the operation mode, clock, and builtin effects
• access to status information and header data
• receiving encoded data in recording mode
• uploading and controlling user programs
Version 0.5, 2007-12-03
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