參數(shù)資料
型號: ST72C171
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU with 8K FLASH, ADC, WDG, SPI, SCI, TIMERS SPGAs Software Programmable Gain Amplifiers, OP-AMP
中文描述: 8位8K閃存,ADC的,水分散粒劑,SPI和脊髓損傷,定時(shí)器SPGAs軟件可編程增益放大器,運(yùn)算放大器控制器
文件頁數(shù): 137/152頁
文件大?。?/td> 1384K
代理商: ST72C171
ST72C171
137/152
COMMUNICATION INTERFACE CHARACTERISTICS
(Cont’d)
Figure 95. SPI Slave Timing Diagram with CPHA=1
1)
Figure 96. 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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