CC3220 Datasheet, PDF (41/84 Pages) Texas Instruments – SimpleLink Wi-Fi Wireless and Internet-of-Things Solution, a Single-Chip Wireless MCU

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CC3220
SWAS035A – SEPTEMBER 2016 – REVISED FEBRUARY 2017
4.14.5.1 SPI
4.14.5.1.1 SPI Master
The CC3220x microcontroller includes one SPI module, which can be configured as a master or slave
device. The SPI includes a serial clock with programmable frequency, polarity, and phase; a
programmable timing control between chip select and external clock generation; and a programmable
delay before the first SPI word is transmitted. Slave mode does not include a dead cycle between two
successive words.
Figure 4-13 shows the timing diagram for the SPI master.
I2
CLK
I6
I7
MISO
I8
MOSI
Figure 4-13. SPI Master Timing Diagram
Table 4-9 lists the timing parameters for the SPI master.
Table 4-9. SPI Master Timing Parameters
PARAMETER
NUMBER
F ⁽¹⁾
Clock frequency
I2
T_clk ⁽¹⁾
D ⁽¹⁾
Clock period
Duty cycle
I6
t_IS ⁽¹⁾
I7
t_IH ⁽¹⁾
I8
t_OD ⁽¹⁾
I9
t_OH ⁽¹⁾
RX data setup time
RX data hold time
TX data output delay
TX data hold time
(1) Timing parameter assumes a maximum load of 20 pF.
MIN
50
45%
1
2
I9
SWAS032-017
MAX
20
55%
8.5
8
UNIT
MHz
ns
ns
ns
ns
ns
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