参数资料
型号: MC68HC711D3MP2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 141/157页
文件大小: 2252K
代理商: MC68HC711D3MP2
Serial Communications Interface (SCI)
Data Sheet
MC68HC711D3 — Rev. 2
84
Serial Communications Interface (SCI)
MOTOROLA
TDRE and TC flags are normally set when the transmitter is first enabled (TE set
to 1). The TDRE flag indicates there is room in the transmit queue to store another
data character in the TDR. The TIE bit is the local interrupt mask for TDRE. When
TIE is 0, TDRE must be polled. When TIE and TDRE are 1, an interrupt is
requested.
The TC flag indicates the transmitter has completed the queue. The TCIE bit is the
local interrupt mask for TC. When TCIE is 0, TC must be polled; when TCIE is 1
and TC is 1, an interrupt is requested.
Writing a 0 to TE requests that the transmitter stop when it can. The transmitter
completes any transmission in progress before actually shutting down. Only an
MCU reset can cause the transmitter to stop and shut down immediately. If TE is
written to 0 when the transmitter is already idle, the pin reverts to its
general-purpose I/O function (synchronized to the bit-rate clock). If anything is
being transmitted when TE is written to 0, that character is completed before the
pin reverts to general-purpose I/O, but any other characters waiting in the transmit
queue are lost. The TC and TDRE flags are set at the completion of this last
character, even though TE has been disabled.
The SCI receiver has five status flags, three of which can generate interrupt
requests. The status flags are set by the SCI logic in response to specific conditions
in the receiver. These flags can be read (polled) at any time by software. Refer to
Figure 6-9, which shows SCI interrupt arbitration.
When an overrun takes place, the new character is lost, and the character that was
in its way in the parallel RDR is undisturbed. RDRF is set when a character has
been received and transferred into the parallel RDR. The OR flag is set instead of
RDRF if overrun occurs. A new character is ready to be transferred into RDR
before a previous character is read from RDR.
The NF and FE flags provide additional information about the character in the RDR,
but do not generate interrupt requests.
The last receiver status flag and interrupt source come from the IDLE flag. The RxD
line is idle if it has constantly been at logic 1 for a full character time. The IDLE flag
is set only after the RxD line has been busy and becomes idle, which prevents
repeated interrupts for the whole time RxD remains idle.
相关PDF资料
PDF描述
MC68HC711D3S 8-BIT, UVPROM, 2.1 MHz, MICROCONTROLLER, CDIP40
MC68HC711D3FN 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC44
MC68HC711G5CFN 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC84
MC68HC11G7CFN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC84
MC68HC711L6CFN1 OTPROM, MICROCONTROLLER, PQCC68
相关代理商/技术参数
参数描述
MC68HC711D3VFNE2 功能描述:8位微控制器 -MCU 8B OTP 192RAM 2 MHZ RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MC68HC711E20CFN2 功能描述:IC MCU 20K 2MHZ OTP 52-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C,IrDA,LIN,SPI,UART/USART 外围设备:DMA,PDR,POR,PVD,PWM,温度传感器,WDT 输入/输出数:26 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN,36-VFQFPN 包装:托盘 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... 其它名称:497-9032STM32F101T8U6-ND
MC68HC711E20CFN3 功能描述:IC MCU 3MHZ 20K OTP 52-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C,IrDA,LIN,SPI,UART/USART 外围设备:DMA,PDR,POR,PVD,PWM,温度传感器,WDT 输入/输出数:26 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN,36-VFQFPN 包装:托盘 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... 其它名称:497-9032STM32F101T8U6-ND
MC68HC711E20CFN4 功能描述:IC MCU 20K OTP 4MHZ 52-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC11 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN,SCI,SPI 外围设备:POR,PWM,温度传感器,WDT 输入/输出数:21 程序存储器容量:40KB(20K x 16) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HC711E20CFU3 制造商:Rochester Electronics LLC 功能描述:8BIT, 20K EPROM, 768RAM. - Bulk 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: