DocID17659 Rev 10
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STM32L151x6/8/B, STM32L152x6/8/B
Electrical characteristics
103
Figure 22. SPI timing diagram - slave mode and CPHA = 0
Figure 23. SPI timing diagram - slave mode and CPHA = 1
(1)
1. Measurement points are done at CMOS levels: 0.3V
DD
and 0.7V
DD.
ai14134c
SCK Input
CPHA= 0
MOSI
I NPUT
MISO
OUT P UT
CPHA= 0
MS B O UT
M SB IN
BI T6 OUT
LSB IN
LSB OUT
CPOL=0
CPOL=1
B I T1 IN
NSS input
tSU(NSS)
tc(SCK)
th(NSS)
ta(SO)
tw(SCKH)
tw(SCKL)
tv(SO)
th(SO)
tr(SCK)
tf(SCK)
tdis(SO)
tsu(SI)
th(SI)
ai14135
SCK Input
CPHA=1
MOSI
I NPUT
MISO
OUT P UT
CPHA=1
MS B O UT
M SB IN
BI T6 OUT
LSB IN
LSB OUT
CPOL=0
CPOL=1
B I T1 IN
tSU(NSS)
tc(SCK)
th(NSS)
ta(SO)
tw(SCKH)
tw(SCKL)
tv(SO)
th(SO)
tr(SCK)
tf(SCK)
tdis(SO)
tsu(SI)
th(SI)
NSS input