Table 39. USB VREG electrical specifications
(continued)
Symbol
Description
Min.
Max.
Unit
Notes
ILIM
Short circuit current
—
290
—
mA
1. Typical values assume VREGIN = 5.0 V, Temp = 25 °C unless otherwise stated.
2. Operating in pass-through mode: regulator output voltage equal to the input voltage minus a drop proportional to ILoad.
6.8.4 CAN switching specifications
6.8.5 DSPI switching specifications (limited 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 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.
Table 40. Master mode DSPI timing (limited voltage range)
Num
Description
Min.
Max.
Unit
Notes
Operating voltage
2.7
3.6
V
Frequency of operation
—
25
MHz
DS1
DSPI_SCK output cycle time
2 x tBUS
—
ns
DS2
DSPI_SCK output high/low time
(tSCK/2) 2 (tSCK/2) + 2
ns
DS3
DSPI_PCSn valid to DSPI_SCK delay
(tBUS x 2)
2
—
ns
DS4
DSPI_SCK to DSPI_PCSn invalid delay
(tBUS x 2)
2
—
ns
DS5
DSPI_SCK to DSPI_SOUT valid
—
8.5
ns
DS6
DSPI_SCK to DSPI_SOUT invalid
2
—
ns
DS7
DSPI_SIN to DSPI_SCK input setup
15
—
ns
DS8
DSPI_SCK to DSPI_SIN input hold
0
—
ns
1. The delay is programmable in SPIx_CTARn[PSSCK] and SPIx_CTARn[CSSCK].
2. The delay is programmable in SPIx_CTARn[PASC] and SPIx_CTARn[ASC].
Peripheral operating requirements and behaviors
K20 Sub-Family Data Sheet Data Sheet, Rev. 7, 02/2013.
Freescale Semiconductor, Inc.
55