参数资料
型号: ST72621L4T1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP44
封装: TQFP-44
文件页数: 25/134页
文件大小: 815K
代理商: ST72621L4T1
ST7262
120/134
COMMUNICATION INTERFACE CHARACTERISTICS (Cont’d)
Figure 78. SPI Slave Timing Diagram with CPHA=11)
Figure 79. 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=0
MOSI INPUT
MISO OUTPUT
CPHA=0
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
SCK
INPUT
CPHA=0
MOSI OUTPUT
MISO INPUT
CPHA=0
CPHA=1
tc(SCK)
tw(SCKH)
tw(SCKL)
th(MI)
tsu(MI)
tv(MO)
th(MO)
MSB IN
MSB OUT
BIT6 IN
BIT6 OUT
LSB OUT
LSB IN
see note 2
CPOL=0
CPOL=1
CPOL=0
CPOL=1
tr(SCK)
tf(SCK)
1
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