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| VS1011E Datasheet, PDF (24/49 Pages) List of Unclassifed Manufacturers – MPEG AUDIO CODEC | |||
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VLSI
Solution y
VS1011e
VS1011E
7. SPI BUSES
7.7.3 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 12: Two SDI Bytes Separated By an SCI Operation.
Figure 12 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 1.04, 2007-10-08
24
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