參數資料
型號: ST72124J2T
廠商: 意法半導體
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
中文描述: 8位單電壓閃存,ADC和16位定時器,SPI和脊髓損傷界面微控制器
文件頁數: 136/153頁
文件大?。?/td> 1533K
代理商: ST72124J2T
ST72334J/N, ST72314J/N, ST72124J
136/153
COMMUNICATION INTERFACE CHARACTERISTICS
(Cont’d)
Figure 96. SPI Slave Timing Diagram with CPHA=1
1)
Figure 97. SPI Master Timing Diagram
1)
Notes:
1.
Measurement points are done at CMOS levels: 0.3xV
DD
and 0.7xV
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 of the I/O port configuration.
SS
INPUT
S
I
CPHA=0
CPOL=0
MOSI
INPUT
MISO
OUTPUT
CPHA=0
CPOL=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
note 2
t
su(SS)
t
h(SS)
t
dis(SO)
t
h(SO)
see
note 2
t
c(SCK)
HZ
t
v(SO)
MSB IN
LSB IN
BIT1 IN
SS
INPUT
S
I
CPHA=0
CPOL=0
MOSI
OUTPUT
MISO
INPUT
CPHA=0
CPOL=1
CPHA=1
CPOL=0
CPHA=1
CPOL=1
t
c(SCK)
t
w(SCKH)
t
w(SCKL)
t
h(MI)
t
su(MI)
t
v(MO)
t
h(MO)
MSB IN
MSB OUT
BIT6 IN
BIT6 OUT
LSB OUT
LSB IN
see note 2
see note 2
t
r(SCK)
t
f(SCK)
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