Specifications

Table Of Contents
ST72361xx-Auto Electrical characteristics
Doc ID 12468 Rev 3 251/279
Figure 116. SPI slave timing diagram with CPHA = 0
1. Measurement points are done at CMOS levels: 0.3 x V
DD
and 0.7 x V
DD
2. When no communication is on-going the data output line of the SPI (MOSI in master mode, MISO in slave
mode) has its alternate function capability released. In this case, the pin status depends on the I/O port
configuration.
Figure 117. SPI slave timing diagram with CPHA = 1
1. Measurement points are done at CMOS levels: 0.3 x V
DD
and 0.7 x V
DD
.
2. When no communication is on-going the data output line of the SPI (MOSI in master mode, MISO in slave
mode) has its alternate function capability released. In this case, the pin status depends on the I/O port
configuration.
SS
INPUT
SCK
INPUT
CPHA = 0
MOSI
INPUT
MISO
OUTPUT
CPHA = 0
t
c(SCK)
t
w(SCKH)
t
w(SCKL)
t
r(SCK)
t
f(SCK)
t
v(SO)
t
a(SO)
t
su(SI)
t
h(SI)
MSB OUT
MSB IN
BIT6 OUT
LSB IN
LSB OUT
See note 2
CPOL = 0
CPOL = 1
t
su(SS)
t
h(SS)
t
dis(SO)
t
h(SO)
See
note 2
BIT1 IN
SS
INPUT
SCK
INPUT
CPHA = 1
MOSI
INPUT
MISO
OUTPUT
CPHA = 1
t
w(SCKH)
t
w(SCKL)
t
r(SCK)
t
f(SCK)
t
a(SO)
t
su(SI)
t
h(SI)
MSB OUT BIT6 OUT
LSB OUT
See
CPOL = 0
CPOL = 1
t
su(SS)
t
h(SS)
t
dis(SO)
t
h(SO)
See
note 2note 2
t
c(SCK)
Hz
t
v(SO)
MSB IN
LSB IN
BIT1 IN