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參數(shù)資料
| 型號： | ST7PLITE05Y0B3 |
| 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, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-16 |
| 文件頁數(shù)： | 67/115頁 |
| 文件大?。?/td> | 781K |
| 代理商： | ST7PLITE05Y0B3 |
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ST7FLITE0
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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 or a system in
which devices may be either masters or slaves.
11.3.2 Main Features
s
Full duplex synchronous transfers (on 3 lines)
s
Simplex synchronous transfers (on 2 lines)
s
Master or slave operation
s
Six master mode frequencies (fCPU/4 max.)
s
fCPU/2 max. slave mode frequency
s
SS Management by software or hardware
s
Programmable clock polarity and phase
s
End of transfer interrupt flag
s
Write collision, Master Mode Fault and Overrrun
flags
11.3.3 General Description
Figure 35 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 35. Serial Peripheral Interface Block Diagram
SPIDR
Read Buffer
8-Bit Shift Register
Write
Read
Data/Address Bus
SPI
SPIE
SPE
MSTR
CPHA
SPR0
SPR1
CPOL
SERIAL CLOCK
GENERATOR
MOSI
MISO
SS
SCK
CONTROL
STATE
SPICR
SPICSR
Interrupt
request
MASTER
CONTROL
SPR2
0
7
0
7
SPIF WCOL
MODF
0
OVR
SSI
SSM
SOD
bit
SS
1
0
1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ST7PLITE05Y0B6 | 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, TIMERS, SPI |
| ST7PLITE05Y0B6TR | 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 |
| ST7PLITE05Y0M6 | 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, TIMERS, SPI |
| ST7PLITE05Y0M6TR | 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 |
| ST7PLITE05Y0U6 | 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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