K11P121M50SF4 Datasheet, PDF (46/59 Pages) Freescale Semiconductor, Inc – K11 Sub-Family Data Sheet

Peripheral operating requirements and behaviors
Table 34. Slave mode DSPI timing (limited voltage range) (continued)
Num
DS10
DS11
DS12
DS13
DS14
DS15
DS16
Description
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 DSPI_SIN input hold
DSPI_SS active to DSPI_SOUT driven
DSPI_SS inactive to DSPI_SOUT not driven
Min.
Max.
Unit
(t_SCK/2) − 2 (t_SCK/2) + 2
ns
—
10
ns
0
—
ns
2
—
ns
7
—
ns
—
14
ns
—
14
ns
DSPI_SS
DSPI_SCK
(CPOL=0)
DSPI_SOUT
DSPI_SIN
DS10
DS15
DS13
First data
DS14
First data
DS12
Data
Data
DS9
DS11
Last data
DS16
Last data
Figure 17. DSPI classic SPI timing — slave mode
6.8.2 DSPI switching specifications (full voltage range)
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 provides 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.
Table 35. Master mode DSPI timing (full voltage range)
Num
DS1
DS2
DS3
Description
Operating voltage
Frequency of operation
DSPI_SCK output cycle time
DSPI_SCK output high/low time
DSPI_PCSn valid to DSPI_SCK delay
Min.
1.71
—
4 x t_BUS
(t_SCK/2) - 4
(t_BUS x 2) −
4
Table continues on the next page...
Max.
3.6
12.5
—
(t_SCK/2) + 4
—
Unit
V
MHz
ns
ns
ns
Notes
1
2
K11 Sub-Family Data Sheet Data Sheet, Rev. 3, 08/2012.
46
Freescale Semiconductor, Inc.