參數(shù)資料
型號(hào): MC68HC705G4
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 102/128頁
文件大?。?/td> 290K
代理商: MC68HC705G4
Page 65
Section 7: SERIAL PERIPHERAL INTERFACE (SPI)
MOTOROLA
MC68HC05G3 (705G4) Specification Rev. 1.1
SECTION 7
SERIAL PERIPHERAL INTERFACE (SPI)
Two serial peripheral interfaces (SPI) are built into the MC68HC05G3 (705G4).
In the SPI format, three separate wires are required for data input, output, and clock. In this
format, the clock is not being included in the data stream and must be provided as a
separate signal. The three pins are occupied for serial clock, input data, and output data.
When one of the SPIs is enabled (SPE = 1), bit 0 through bit 2 of port C/port G become
SDI, SDO, and SCK pins, and the corresponding DDRC/DDRG bit has no affect on the
direction of the pin.
The MSTR bit decides the SPI operation mode; SCK pin is configured as output in the
master mode and configured as input in the slave mode.
The DORD bit in the serial peripheral control register (SPCR) selects the data transmission
order. When DORD bit is set, the LSB of serial data is shifted out/in first. When the DORD
bit is clear, serial data is shifted from MSB.
Serial clock speed is selectable by the SPR bit in the SPCR. Interrupt may be generated
by the completion of transfer.
7.1
FEATURES
Full Duplex, Three-Wire Synchronous Transfers
Master and Slave Operation
Programmable Data Transmission Order
E/2 (Maximum) Master Bit Frequency
E (Maximum) Slave Bit Frequency
Two Programmable Master Bit Rates
End of Transmission Interrupt Flag
Wakeup from Stop Mode (Slave Mode Only)
7.2
FUNCTIONAL DESCRIPTIONS
A block diagram of the serial peripheral is shown in Figure 7-2.
The clock start logic is triggered by CPU (detection of CPU write to the 8-bit shift register
(SPDR)) and originates the system clock (SCK) based on the internal processor clock. This
clock also is used in the 3-bit counter and 8-bit shift register.
After data is written to the 8-bit shift register of the master device, it is then shifted out to
the SDO pin for application to the slave device. At the same time, data applied from a slave
device via the SDI pin is shifted into the 8-bit shift register.
相關(guān)PDF資料
PDF描述
MC68HC05G3 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP80
MC68HC705J5ACJP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
MC68HC705J1ACDW 功能描述:IC MCU 4MHZ 1.2K OTP 20-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C,IrDA,LIN,SPI,UART/USART 外圍設(shè)備:DMA,PDR,POR,PVD,PWM,溫度傳感器,WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB(64K x 8) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN,36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
MC68HC705J1ACP 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C,IrDA,LIN,SPI,UART/USART 外圍設(shè)備:DMA,PDR,POR,PVD,PWM,溫度傳感器,WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB(64K x 8) 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN,36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
MC68HC705J1ACPE 功能描述:8位微控制器 -MCU HCO5 CORE+1.2K RAM + EPR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68HC705J2CDW 制造商:Motorola Inc 功能描述: 制造商:Motorola Inc 功能描述:MicroController, 8-Bit, 20 Pin, Plastic, SOP