參數(shù)資料
型號(hào): ST7FLIT19BF1U6TR
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20
封裝: LEAD FREE, QFN-20
文件頁數(shù): 41/153頁
文件大?。?/td> 2862K
代理商: ST7FLIT19BF1U6TR
ST7LITE1xB
135/153
COMMUNICATION INTERFACE CHARACTERISTICS (Cont’d)
Figure 107. SPI Slave Timing Diagram with CPHA=1 1)
Figure 108. SPI Master Timing Diagram 1)
Notes:
1. Measurement points are done at CMOS levels: 0.3xVDD and 0.7xVDD.
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
SCK
INPUT
CPHA=1
MOSI INPUT
MISO OUTPUT
CPHA=1
tw(SCKH)
tw(SCKL)
tr(SCK)
tf(SCK)
ta(SO)
tsu(SI)
th(SI)
MSB OUT
BIT6 OUT
LSB OUT
see
CPOL=0
CPOL=1
tsu(SS)
th(SS)
tdis(SO)
th(SO)
see
note 2
tc(SCK)
HZ
tv(SO)
MSB IN
LSB IN
BIT1 IN
SS INPUT
SC
K
IN
PU
T
CPHA = 0
MOSI OUTPUT
MISO INPUT
CPHA = 0
CPHA = 1
tc(SCK)
tw(SCKH)
tw(SCKL)
th(MI)
tsu(MI)
MSB IN
MSB OUT
BIT6 IN
BIT6 OUT
LSB OUT
LSB IN
Seenote2
CPOL = 0
CPOL = 1
CPOL = 0
CPOL = 1
tr(SCK)
tf(SCK)
th(MO)
tv(MO)
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