參數(shù)資料
型號： MC68HC705J2
廠商： Motorola, Inc.
英文描述： HCMOS MICROCONTROLLER UNIT
中文描述： HCMOS微控制器
文件頁數(shù)： 26/82頁
文件大?。?/td> 327K
代理商： MC68HC705J2
MOTOROLA
4-4
CENTRAL PROCESSOR UNIT
MC68HC705J2
Rev. 2
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4.1.5.4 Zero Flag
The CPU sets the zero flag when an arithmetic operation, logical operation, or data
manipulation produces a $00.
4.1.5.5 Carry/Borrow Flag
The CPU sets the carry/borrow flag when an addition operation produces a carry
out of bit 7 of the accumulator. Some logical operations and data manipulation
instructions also clear or set the carry/borrow flag.
4.2 Arithmetic/Logic Unit (ALU)
The ALU performs the arithmetic and logical operations defined by the instruction
set.
The binary arithmetic circuits decode instructions and set up the ALU for the
selected operation. Most binary arithmetic is based on the addition algorithm,
carrying out subtraction as negative addition. Multiplication is not performed as a
discrete operation but as a chain of addition and shift operations within the ALU.
The multiply instruction (MUL) requires 11 internal processor cycles to complete
this chain of operations.
4.3 Low-Power Modes
The following paragraphs describe the STOP and WAIT modes. (Refer also to
6.2
Data Retention Mode
.)
4.3.1 STOP Mode
The STOP instruction puts the MCU in its lowest power-consumption mode. In
STOP mode, the following events occur:
The CPU clears TOF and RTIF, the timer interrupt flags in the timer control
and status register, removing any pending timer interrupts.
The CPU clears TOIE and RTIE, the timer interrupt enable bits in the timer
control and status register, disabling further timer interrupts.
The CPU clears the divide-by-four timer prescaler.
The CPU clears the interrupt mask in the condition code register, enabling
external interrupts.
The internal oscillator stops, halting all internal processing, including
operation of the timer and the COP timer.
The STOP instruction does not affect any other registers or any I/O lines.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MC68HC705J2DW 制造商:Motorola Inc 功能描述:
MC68HC705J5ACP 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705JB4DW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HC705JJ7CDW 功能描述:IC MCU 8BIT 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
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