K20P104M100SF2 Freescale Semiconductor, K20P104M100SF2 Datasheet - Page 49

• Manufacturer Part Number: K20P104M100SF2
• Description: K20 Sub-Family
• Manufacturer: Freescale Semiconductor

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6.8.5 DSPI Switching Specifications (High-speed mode)
The DMA Serial Peripheral Interface (DSPI) provides a synchronous serial bus with
master and slave operations. Many of the transfer attributes are programmable. The tables
below provide DSPI timing characteristics for classic SPI timing modes. Refer to the
DSPI chapter of the Reference Manual for information on the modified transfer formats
used for communicating with slower peripheral devices.
Freescale Semiconductor, Inc.
DS10
DS11
DSPI_PCSn
DSPI_SCK
(CPOL=0)
DSPI_SIN
DSPI_SOUT
Num
Num
DS1
DS2
DS3
DS4
DS5
DS6
DS7
DS8
DS9
Operating voltage
Frequency of operation
DSPI_SCK output cycle time
DSPI_SCK output high/low time
DSPI_PCSn to DSPI_SCK output valid
DSPI_SCK to DSPI_PCSn output hold
DSPI_SCK to DSPI_SOUT valid
DSPI_SCK to DSPI_SOUT invalid
DSPI_SIN to DSPI_SCK input setup
DSPI_SCK to DSPI_SIN input hold
Operating voltage
Frequency of operation
DSPI_SCK input cycle time
DSPI_SCK input high/low time
DSPI_SCK to DSPI_SOUT valid
Table 38. Master Mode DSPI Timing (High-speed mode)
Table 39. Slave Mode DSPI Timing (High-speed mode)
Figure 19. DSPI Classic SPI Timing — Master Mode
K20 Sub-Family Data Sheet Data Sheet, Rev. 1, 11/2010.
DS7
DS3
Description
Description
First data
Table continues on the next page...
DS8
First data
DS5
DS2
Preliminary
Data
Data
DS6
Peripheral operating requirements and behaviors
DS1
Last data
Last data
(t
(t
(t
(t
2 x t
SCK
SCK
SCK
4 x t
SCK
TBD
Min.
DS4
Min.
2.7
2.7
−2
—
—
—
/2) − 2
/2) − 2
/2) − 2
/2) − 2
0
BCLK
BCLK
(t
(t
SCK
SCK
Max.
Max.
TBD
12.5
3.6
8.5
3.6
25
—
—
—
—
—
—
—
/2) + 2
/2 + 2
MHz
MHz
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
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