mk50x256cmb100 Freescale Semiconductor, Inc, mk50x256cmb100 Datasheet - Page 58

• Manufacturer Part Number: mk50x256cmb100
• Description: Arm Cortex-m4 Core With Dsp
• Manufacturer: Freescale Semiconductor, Inc

Peripheral operating requirements and behaviors
1. Operating in pass-through mode: regulator output voltage equal to the input voltage minus a drop proportional to I
6.8.4 DSPI switching specifications (low-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 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.
1. The DSPI module can operate across the entire operating voltage for the processor, but to run across the full voltage
58
V
V
Symbol
Reg33out
Reg33out
C
range the maximum frequency of operation is reduced.
ESR
I
Num
DS1
DS2
DS3
DS4
DS5
DS6
DS7
DS8
LIM
OUT
Regulator output voltage — Input supply
(VREGIN) > 3.6 V
Regulator output voltage — Input supply
(VREGIN) < 3.6 V, pass-through mode
External output capacitor
External output capacitor equivalent series
resistance
Current limitation threshold
Description
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
• Run mode
• Standby mode
Table 41. USB VREG electrical specifications
Table 42. Master mode DSPI timing (low-speed mode)
K50 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
Description
(continued)
Preliminary
1.76
Min.
185
2.5
2.3
3
1
(t
(t
(t
4 x t
SCK
SCK
SCK
1.71
Min.
15
—
—
-2
0
/2) - 4
/2) - 4
/2) - 4
BCLK
Typ.
290
3.3
2.8
2.2
—
—
(t
SCK/2)
Max.
12.5
3.6
10
—
—
—
—
—
—
Max.
8.16
100
395
3.6
3.6
3.6
+ 4
Freescale Semiconductor, Inc.
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
V
Unit
mΩ
mA
μF
V
V
V
Notes
Load
Notes
1
1
.