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SPRS230M – OCTOBER 2003 – REVISED MARCH 2011
1
SPICLK
(clock polarity = 0)
2
3
SPICLK
(clock polarity = 1)
6
7
SPISIMO
Master Out Data Is Valid
10
11
SPISOMI
Master In Data Must
Be Valid
Data Valid
SPISTE
(A)
A.
In the master mode, SPISTE goes active 0.5t
c(SPC)
(minimum) before valid SPI clock edge. On the trailing end of the word, the SPISTE will go inactive 0.5t
c(SPC)
after
the receiving edge (SPICLK) of the last data bit, except that SPISTE stays active between back-to-back transmit words in both FIFO and non-FIFO modes.
Figure 6-21. SPI Master Mode External Timing (Clock Phase = 1)
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Electrical Specifications
123
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