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K40P81M100SF2 Datasheet, PDF (46/60 Pages) Freescale Semiconductor, Inc – K40 Sub-Family Data Sheet | |||
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Peripheral operating requirements and behaviors
DSPI_PCSn
DSPI_SCK
(CPOL=0)
DSPI_SIN
DSPI_SOUT
DS3
DS2
DS1
DS4
DS7
DS8
First data
DS5
First data
Data
Last data
DS6
Data
Last data
y Num
ar DS9
DS10
in DS11
DS12
DS13
lim DS14
DS15
DS16
Figure 15. DSPI Classic SPI Timing â Master Mode
Table 36. Slave Mode DSPI Timing (Low-speed Mode)
Description
Operating voltage
Frequency of operation
DSPI_SCK input cycle time
DSPI_SCK input high/low time
DSPI_SCK to DSPI_SOUT valid
DSPI_SCK to DSPI_SOUT invalid
DSPI_SIN to DSPI_SCK input setup
DSPI_SCK to DSIP_SIN input hold
DSPI_SS active to DSPI_SOUT driven
DSPI_SS inactive to DSPI_SOUT not driven
Min.
1.71
â
8 x tBCLK
(tSCK/2) - 4
â
0
5
15
â
â
Max.
3.6
6.25
â
(tSCK/2) + 4
20
â
â
â
15
15
Pre DSPI_SS
DS10
DS9
Unit
V
MHz
ns
ns
ns
ns
ns
ns
ns
ns
DSPI_SCK
(CPOL=0)
DS15
DS12
DS11
DS16
DSPI_SOUT
First data
Data
DS13
DS14
Last data
DSPI_SIN
First data
Data
Last data
Figure 16. DSPI Classic SPI Timing â Slave Mode
K40 Sub-Family Data Sheet Data Sheet, Rev. 1, 11/2010.
46
Preliminary
Freescale Semiconductor, Inc.
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