參數(shù)資料
型號： MQ80C52TXXX-25:RD
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
封裝： CERAMIC, QFP-44
文件頁數(shù)： 81/170頁
文件大?。?/td> 25028K
171
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Figure 18-3. SPI transfer format with CPHA = 0.
Figure 18-4. SPI transfer format with CPHA = 1.
Table 18-2.
SPI modes.
SPI Mode
Conditions
Leading Edge
Trailing Edge
0
CPOL=0, CPHA=0
Sample (Rising)
Setup (Falling)
1
CPOL=0, CPHA=1
Setup (Rising)
Sample (Falling)
2
CPOL=1, CPHA=0
Sample (Falling)
Setup (Rising)
3
CPOL=1, CPHA=1
Setup (Falling)
Sample (Rising)
Bit 1
Bit 6
LSB
MSB
SCK (CPOL = 0)
mode 0
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 1)
mode 2
SS
MSB
LSB
Bit 6
Bit 1
Bit 5
Bit 2
Bit 4
Bit 3
Bit 4
Bit 2
Bit 5
MSB first (DORD = 0)
LSB first (DORD = 1)
SCK (CPOL = 0)
mode 1
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 1)
mode 3
SS
MSB
LSB
Bit 6
Bit 1
Bit 5
Bit 2
Bit 4
Bit 3
Bit 4
Bit 2
Bit 5
Bit 1
Bit 6
LSB
MSB
MSB first (DORD = 0)
LSB first (DORD = 1)
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