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參數資料
型號: MC68HC05C8A
廠商: Motorola, Inc.
英文描述: Microcontrollers
中文描述: 微控制器
文件頁數: 92/158頁
文件大小: 773K
代理商: MC68HC05C8A
Serial Peripheral Interface (SPI)
Technical Data
MC68HC05C8A
MC68HCL05C8A
MC68HSC05C8A
Rev. 5.0
92
Serial Peripheral Interface (SPI)
MOTOROLA
In a slave mode, the slave select start logic receives a logic low at the
SS pin and a clock at the SCK pin. Thus, the slave is synchronized with
the master. Data from the master is received serially at the MOSI line
and loads the 8-bit shift register. After the 8-bit shift register is loaded, its
data is parallel transferred to the read buffer. During a write cycle, data
is written into the shift register, then the slave waits for a clock train from
the master to shift the data out on the slave
s MISO line.
Figure 10-3
illustrates the MOSI, MISO, SCK, and SS master-slave
interconnections.
Figure 10-3. Serial Peripheral Interface Master-Slave Interconnection
10.6 SPI Registers
This subsection describes the three registers in the SPI which provide
control, status, and data storage functions. These registers are:
Serial peripheral control register (SPCR)
Serial peripheral status register (SPSR)
Serial peripheral data I/O register (SPDR)
I/O PORT
SPDR ($000C)
SPDR ($000C)
SPI SHIFT REGISTER
SPI SHIFT REGISTER
PD3/MOSI
PD2/MISO
PD4/SCK
MASTER MCU
SLAVE MCU
SS
PD5
相關PDF資料
PDF描述
MC68HC05C9A 8-Bit Microcontroller(8位微控制器)
MC68HCL05C9A 8-Bit Microcontroller(8位微控制器)
MC68HSC05C9A 8-Bit Microcontroller(8位微控制器)
MC68HC05F2 8-Bit Microcontroller Units (MCU).(8位微控制器)
MC68HC05F6 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數
參數描述
MC68HC05C8ACFN 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 44 Pin, Plastic, PLCC
MC68HC05C9 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:TECHNICAL DATA
MC68HC05C9A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
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