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| 型號(hào)： | MC68HC711E9 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 8-channel, 8-bit analog-to-digital (A/D) converter |
| 中文描述： | 8通道，8位模擬至數(shù)字（A / D）轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 130/268頁(yè) |
| 文件大小： | 2221K |
| 代理商： | MC68HC711E9 |
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Serial Communications Interface (SCI)
Data Sheet
M68HC11E Family — Rev. 5
130
Serial Communications Interface (SCI)
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
these flags is automatic. Functions that are normally performed in response to the
status flags also satisfy the conditions of the clearing sequence.
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.
7.9 Receiver Flags
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 7-10
, 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.
F
Freescale Semiconductor, Inc.
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC711E9 K81H WAF | 制造商:Motorola Inc 功能描述: |
| MC68HC711E9CFN | 制造商:Rochester Electronics LLC 功能描述: |
| MC68HC711E9CFN2 | 功能描述:IC MCU 12K 2MHZ OTP 52-PLCC RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 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(lèi)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(pán) 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(chēng):497-9032STM32F101T8U6-ND |
| MC68HC711E9CFN3 | 功能描述:IC MCU 3MHZ 12K OTP 52-PLCC RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 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(lèi)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(pán) 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(chēng):497-9032STM32F101T8U6-ND |
| MC68HC711E9CFNE2 | 功能描述:8位微控制器 -MCU 8B OTP 512RAM A/D EE 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 |
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