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STM32H743xI Electrical characteristics
196
Figure 48. SPI timing diagram - slave mode and CPHA = 1
(1)
1. Measurement points are done at 0.5V
DD
and with external C
L
= 30 pF.
Figure 49. SPI timing diagram - master mode
(1)
1. Measurement points are done at 0.5V
DD
and with external C
L
= 30 pF.
MSv41659V1
NSS input
CPHA=1
CPOL=0
SCK input
CPHA=1
CPOL=1
MISO output
MOSI input
t
su(SI)
t
h(SI)
t
w(SCKL)
t
w(SCKH)
t
su(NSS)
t
c(SCK)
t
a(SO)
t
v(SO)
First bit OUT Next bits OUT
Next bits IN
Last bit OUT
t
h(SO)
t
r(SCK)
t
f(SCK)
t
h(NSS)
t
dis(SO)
First bit IN Last bit IN
ai14136c
SCK Output
CPHA= 0
MOSI
OUTPUT
MISO
INP UT
CPHA= 0
LSB OUT
LSB IN
CPOL=0
CPOL=1
B IT1 OUT
NSS input
t
c(SCK)
t
w(SCKH)
t
w(SCKL)
t
r(SCK)
t
f(SCK)
t
h(MI)
High
SCK Output
CPHA=1
CPHA=1
CPOL=0
CPOL=1
t
su(MI)
t
v(MO)
t
h(MO)
MSB IN
BIT6 IN
MSB OUT
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