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| VS1103B Datasheet, PDF (22/61 Pages) List of Unclassifed Manufacturers – MIDI/ADPCM AUDIO CODEC | |||
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VLSI
Solution y
VS1103b
VS1103B
5. SPI BUSES
5.7.3 SCI Operation in Middle of Two SDI Bytes
SDI Byte
XCS
0
1
7
SCK
7
6
51
SI
SCI Operation
8
9
39
0
00
DREQ
SDI Byte
40 41
46 47
7
6
5
1
0
X
DREQ high before end of next transfer
Figure 11: Two SDI Bytes Separated By an SCI Operation.
Figure 11 shows how an SCI operation is embedded in between SDI operations. xCS edges are used to
synchronize both SDI and SCI. Remember to respect DREQ as shown in the ï¬gure.
Version 1.01, 2007-09-03
22
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