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參數(shù)資料
| 型號(hào)： | MC68HC705X4DW |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | HCMOS Microcontroller Unit |
| 中文描述： | 8-BIT, OTPROM, 2.2 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁(yè)數(shù)： | 100/156頁(yè) |
| 文件大?。?/td> | 926K |
| 代理商： | MC68HC705X4DW |
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Motorola CAN
MC68HC05X4
100
Motorola CAN
MOTOROLA
Single wire
operation
In the event of a bus fault occurring, limited operation of the MCAN bus
may still be possible, depending on the nature of the fault. If the fault is
due to a short circuit between the two bus lines or between one of the
lines and ground, battery voltage or some other potential, it is possible
to identify (using a special software procedure) the line on which the fault
exists and to switch the corresponding comparator input from the faulty
line to the V
DD
/2 reference supply. At the same time the driver transistors
to the faulty line should also be switched off. This will allow
communication to continue on the bus. One result of this mode of one
wire transmission is a significant reduction in the common mode range
of the input comparator.
Switching to one wire operation is achieved using the control bits
RX0-passive and RX1-passive in the MCAN command register, located
at address $21. Setting either of these bits will result in the
corresponding input being disconnected from the bus and connected to
V
DD
/2.
Sleep mode
If the SLEEP bit in the MCAN command register is set by the processor
the MCAN will go to sleep, unless it is active. If there is activity on the
MCAN bus lines, or there is an interrupt pending, the MCAN is deemed
to be active and will not go to sleep; a wake-up interrupt will be
generated by the MCAN in these circumstances. The SLEEP bit may
also be cleared by the processor, in which case no wake-up interrupt will
be generated. Note that this bit is write-only by the CPU, and it is not
possible therefore to check whether sleep mode has been entered by
reading it. However, the CAF bit in the port configuration register is set
when the MCAN is asleep, and cleared when it is woken up (see
Port
configuration register (PCR)
).
32-mcan
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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| MC68HC711D3CFN2 | 功能描述:IC MCU 2MHZ 4K OTP 44-PLCC RoHS:否 類別: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 |
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