Texas Instruments TMS320F2802 - Manual (Page 120)

9
4
SPISOMI
SPISIMO
SPICLK
(clock polarity = 1)
SPICLK
(clock polarity = 0)
Master In Data
Must Be Valid
Master Out Data Is Valid
8
5
3
2
1
SPISTE (A)
TMS320F2809, TMS320F2808, TMS320F2806
TMS320F2802, TMS320F2801, TMS320C2802
TMS320C2801, TMS320F28016, TMS320F28015
SPRS230N – OCTOBER 2003 – REVISED MAY 2012 www.ti.com
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 6-20. SPI Master Mode External Timing (Clock Phase = 0)
120 Electrical Specifications Copyright © 2003–2012, Texas Instruments Incorporated
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