ST72C334J4TAE STMicroelectronics, ST72C334J4TAE Datasheet - Page 136

• Manufacturer Part Number: ST72C334J4TAE
• Description: 8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, SCI interfaces
• Manufacturer: STMicroelectronics

ST72334xx-Auto, ST72314xx-Auto, ST72124Jx-Auto
15.11 COMMUNICATION INTERFACE CHARACTERISTICS
15.11.1 SPI - Serial Peripheral Interface
Subject to general operating conditions for V
f
Figure 94. SPI Slave Timing Diagram with CPHA = 0
Notes:
1. Data based on design simulation and/or characterization results, not tested in production.
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.
3. Measurement points are done at CMOS levels: 0.3xV
136/150
OSC
1/t
Symbol
t
t
w(SCKH)
MISO
MOSI
w(SCKL)
t
t
t
t
t
t
t
t
t
t
dis(SO)
t
t
r(SCK)
f(SCK)
su(SS)
t
su(MI)
t
h(MO)
f
su(SI)
a(SO)
h(SO)
v(MO)
h(SS)
v(SO)
h(MI)
, and T
SCK
c(SCK)
h(SI)
SS
CPHA=0
CPOL=0
CPHA=0
CPOL=1
OUTPUT
INPUT
INPUT
A
SPI clock frequency
SPI clock rise and fall time
SS setup time
SS hold time
SCK high and low time
Data input setup time
Data input hold time
Data output access time
Data output disable time
Data output valid time
Data output hold time
Data output valid time
Data output hold time
unless otherwise specified.
see note 2
t
a(SO)
t
su(SS)
t
su(SI)
Parameter
MSB IN
t
t
w(SCKH)
w(SCKL)
MSB OUT
t
t
h(SI)
c(SCK)
t
v(SO)
DD
DD
Master
Slave
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
Slave
Slave
Slave (after enable edge)
Master (before capture edge)
,
BIT6 OUT
and 0.7xV
Refer to I/O port characteristics for more details on
the input/output alternate function characteristics
(SS, SCK, MOSI, MISO).
3)
Conditions
DD
BIT1 IN
.
f
f
t
CPU
CPU
h(SO)
= 8 MHz
= 8 MHz
t
t
r(SCK)
f(SCK)
LSB IN
f
CPU
see I/O port pin description
0.0625
0.25
0.25
LSB OUT
Min
120
120
100
100
100
100
100
90
0
0
0
/128
t
h(SS)
f
f
CPU
CPU
Max
120
240
120
2
4
/4
/2
t
dis(SO)
Unit
t
MHz
CPU
note 2
ns
see