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參數(shù)資料
| 型號： | ST7LITE19F1B6 |
| 英文描述： | FUSE CLIP 3AG SLDR LUG TIN BRASS |
| 中文描述： | ST7LITE1 - 8單電壓閃存EEPROM的MEMORY.DATA位MCU。 ADC的。 4定時(shí)器。的SPI |
| 文件頁數(shù)： | 57/122頁 |
| 文件大?。?/td> | 1716K |
| 代理商： | ST7LITE19F1B6 |
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ST7LITE0, ST7SUPERLITE
57/122
11.3 SERIAL PERIPHERAL INTERFACE (SPI)
11.3.1 Introduction
The Serial Peripheral Interface (SPI) allows full-
duplex, synchronous, serial communication with
external devices. An SPI system may consist of a
master and one or more slaves however the SPI
interface can not be a master in a multi-master
system.
11.3.2 Main Features
I
Full duplex synchronous transfers (on 3 lines)
I
Simplex synchronous transfers (on 2 lines)
I
Master or slave operation
I
Six master mode frequencies (f
CPU
/4 max.)
I
f
CPU
/2 max. slave mode frequency
I
SS Management by software or hardware
I
Programmable clock polarity and phase
I
End of transfer interrupt flag
I
Write collision, Master Mode Fault and Overrun
flags
11.3.3 General Description
Figure 36
shows the serial peripheral interface
(SPI) block diagram. There are 3 registers:
– SPI Control Register (SPICR)
– SPI Control/Status Register (SPICSR)
– SPI Data Register (SPIDR)
The SPI is connected to external devices through
3 pins:
– MISO: Master In / Slave Out data
– MOSI: Master Out / Slave In data
– SCK: Serial Clock out by SPI masters and in-
put by SPI slaves
– SS: Slave select:
This input signal acts as a ‘chip select’ to let
the SPI master communicate with slaves indi-
vidually and to avoid contention on the data
lines. Slave SS inputs can be driven by stand-
ard I/O ports on the master MCU.
Figure 36. Serial Peripheral Interface Block Diagram
SPIDR
Read Buffer
8-Bit Shift Register
Write
Read
Data/Address Bus
SPI
STATE
SPIE
SPE
MSTR
CPHA
SPR0
SPR1
CPOL
SERIAL CLOCK
GENERATOR
MOSI
MISO
SS
SCK
CONTROL
SPICR
SPICSR
Interrupt
request
MASTER
CONTROL
SPR2
0
7
0
7
SPIF WCOL
MODF
0
OVR
SSI
SSM
SOD
SOD
bit
SS
1
0
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ST7LITE19F1M6 | ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI |
| ST890B | 1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN |
| ST890C | 1.2 CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN |
| ST890 | 1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN |
| ST8LR2 | PHOTOTRANSISTOR | NPN | 800NM PEAK WAVELENGTH | 20M | LED-2B |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST7LITE19F1M6 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI |
| ST7LITE1XB | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI |
| ST7LITE1XB_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI |
| ST7LITE2 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI |
| ST7LITE2_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI |
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