參數資料
型號: ST7DALI
廠商: 意法半導體
元件分類: ADC
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI
中文描述: 8位單電壓閃存存儲器,數據EEPROM,模數轉換器,定時器,SPI和大理微控制器
文件頁數: 83/141頁
文件大?。?/td> 2175K
代理商: ST7DALI
ST7DALI
83/141
SERIAL PERIPHERAL INTERFACE
(Cont’d)
11.5.4 Clock Phase and Clock Polarity
Four possible timing relationships may be chosen
by software, using the CPOL and CPHA bits (See
Figure 49
).
Note:
The idle state of SCK must correspond to
the polarity selected in the SPICSR register (by
pulling up SCK if CPOL=1 or pulling down SCK if
CPOL=0).
The combination of the CPOL clock polarity and
CPHA (clock phase) bits selects the data capture
clock edge
Figure 49
, shows an SPI transfer with the four
combinations of the CPHA and CPOL bits. The di-
agram may be interpreted as a master or slave
timing diagram where the SCK pin, the MISO pin,
the MOSI pin are directly connected between the
master and the slave device.
Note
: If CPOL is changed at the communication
byte boundaries, the SPI must be disabled by re-
setting the SPE bit.
Figure 49. Data Clock Timing Diagram
SCK
(CPOL = 1)
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MISO
(from master)
MOSI
(from slave)
SS
(to slave)
CAPTURE STROBE
CPHA =1
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MSBit
Bit 6
Bit 5
Bit 4
Bit3
Bit 2
Bit 1
LSBit
MISO
(from master)
MOSI
(from slave)
SS
(to slave)
CAPTURE STROBE
CPHA =0
Note:
This figure should not be used as a replacement for parametric information.
Refer to the Electrical Characteristics chapter.
SCK
(CPOL = 0)
SCK
(CPOL = 1)
SCK
(CPOL = 0)
1
相關PDF資料
PDF描述
ST7FDALIF2M6 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI
ST7PDALIF2M6 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI
ST7FLCD1 8-bit MCU for LCD Monitors with 60 KBytes Flash, 2 KBytes RAM, 2 DDC Ports and Infrared Controller
ST7FLIT19B 8-Bit MCU With Single Voltage Flash Memory, Data EEPROM, ADC, 5 Timers, SPI(內部RC,PLL,ADC,ROP,ICP, IAP,SPI的8位MCU)
ST7FLITE10F1B6 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 4 TIMERS, SPI
相關代理商/技術參數
參數描述
ST7DALI-EVAL 功能描述:開發(fā)板和工具包 - 其他處理器 Eval for ST7DALI RoHS:否 制造商:Freescale Semiconductor 產品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
ST7-DVP3 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low Cost, Real Time Emulator Series for ST7
ST7EA 100 功能描述:微調電阻器 - 表面貼裝 ST7EA101 RoHS:否 制造商:Murata 產品:Single-Turn Trimmer Potentiometers 產品類型:Single Turn 轉數:1 元件類型:Cermet 錐度:Linear 電阻:10 kOhms 電壓額定值: 端接類型:SMD/SMT 功率額定值:250 mW (1/4 W) 容差:20 % 溫度系數:150 PPM / C
ST-7EA 100(101) 制造商:Copal Electronics 功能描述:100 }20% (B) }100ppm/ 0.25W/70 0W/125 6.4~3.4~6.1mm +125 -55 6.4mm 3.4mm 6.1mm
ST-7EA 100k(104) 制造商:Copal Electronics 功能描述:100k }20% (B) }100ppm/ 0.25W/70 0W/125 6.4~3.4~6.1mm +125 -55 6.4mm 3.4mm 6.1mm