參數(shù)資料
型號: MC68HC705L16CFU
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, QFP-80
文件頁數(shù): 120/146頁
文件大?。?/td> 852K
代理商: MC68HC705L16CFU
Port Function
MC68HC05L16 MC68HC705L16 Data Sheet, Rev. 4.1
Freescale Semiconductor
75
8.6.3 Serial Peripheral Data Register
Read
A read during transmission causes DCOL to be set.
Write
A write during transmission causes DCOL to be set.
The SPDR is used to transmit and receive data on the serial bus.
In master mode, a write to this register initiates transmission/reception of a data byte.
The SPIF status bit is set at the completion of data byte transmission. A write to the SPDR is inhibited
while this register is shifting (a write attempt sets DCOL) or when the SPIF bit is set without reading SPSR.
Data collision never affects the receiving and transmitting data in SPDR.
A write or read of the SPDR after accessing the SPSR with SPIF set will clear the SPIF and DCOL bits.
The ability to access the SPDR is inhibited when a transmission is taking place. It is important to read the
discussion defining the DCOL and SPIF bits to understand the limits on using the SPDR.
When SSPI is not used (SPE = 0), the SPDR can be used as a general-purpose data storage register.
8.7 Port Function
The SSPI shares I/O pins with PC0–PC2. When SPE is set, PC0 becomes SDI input, PC1 becomes SDO
output and PC2 becomes SCK. The direction of SCK depends on the MSTR bit. Setting DDRC bits 0–2
does not change the data direction of the pin to output, but instead changes the source of data when
PC0–PC2 is read. If DDRCx = 1, port C bit x data latch is read and if DDRCx = 0, PORTCx pin level is
read by the CPU.
When SPE is clear, SSPI is disconnected from the I/O pins and PC0–PC2 are used as general-purpose
I/O pins. See 6.4 Port C.
Address:
$000C
Bit 7
654321
Bit 0
Read:
MSB
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
LSB
Write:
Reset:
Unaffected by Reset
Figure 8-6. Serial Peripheral Data Register (SPDR)
相關(guān)PDF資料
PDF描述
MC68HC05L16CFU 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP80
MC68HC705P9CDWR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HC705V12CFNR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC68
MC68HC708AS48CFN 8-BIT, EEPROM, 8.4 MHz, MICROCONTROLLER, PQCC52
MC68HC711D3FNR2 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705L32FU 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
MC68HC705L5FUE 功能描述:8位微控制器 -MCU 705L5-EPP-80QFP-6019 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
MC68HC705MC4CDW 制造商:Motorola 功能描述:MOTOROLA S7D9B
MC68HC705P6ACDW 功能描述:8位微控制器 -MCU 8 Bit 2.1MHz 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
MC68HC705P6ACP 功能描述:IC MCU 2.1MHZ 4.5K OTP 28-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 標準包裝: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 程序存儲器容量:64KB(64K x 8) 程序存儲器類型: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