Datasheet
Electrical characteristics
i.MX 8QuadXPlus and 8DualXPlus Automotive and Infotainment Applications Processors, Rev. 0, 11/2018
PRELIMINARYNXP Semiconductors 59
Figure 21. LPSPI Slave mode
Table 51. LPSPI timings—Slave mode at 40 MHz
ID Parameter Min Max Unit
— SPI
x
_SCLK Cycle frequency — 40 MHz
t1 SPI
x
_SCLK High or Low Time–Read
SPI
x
_SCLK High or Low Time–Write
11 — ns
t2 SPI
x
_CSy pulse width 11 — ns
t3 SPI
x
_CSy Lead Time (CS setup time) 4 — ns
t4 SPI
x
_CSy Lag Time (CS hold time) 2 — ns
t5 SPI
x
_SDO output Delay (CLOAD = 20 pF) — 5 ns
t6 SPI
x
_SDI Setup Time 2 — ns
t7 SPI
x
_SDI Hold Time 2 — ns
Table 52. LPSPI timings—Slave mode at 20 MHz
ID Parameter Min Max Unit
— SPI
x
_SCLK Cycle frequency — 20 MHz
t1 SPI
x
_SCLK High or Low Time–Read
SPI
x
_SCLK High or Low Time–Write
22 — ns
t2 SPI
x
_CSy pulse width 22 — ns
t3 SPI
x
_CSy Lead Time (CS setup time) 4 — ns