參數(shù)資料
型號(hào)： MC68HC05P8EVS
廠商： Motorola, Inc.
英文描述： HCMOS MICROCONTROLLER UNIT
中文描述： HCMOS微控制器
文件頁(yè)數(shù)： 26/82頁(yè)
文件大小： 327K
代理商： MC68HC05P8EVS
MOTOROLA
4-4
CENTRAL PROCESSOR UNIT
MC68HC705J2
Rev. 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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.
相關(guān)PDF資料
PDF描述
MC68HC705J2 HCMOS MICROCONTROLLER UNIT
MC68HC705J2CP HCMOS MICROCONTROLLER UNIT
MC68HC705J2DW HCMOS MICROCONTROLLER UNIT
MC68HC705J2P HCMOS MICROCONTROLLER UNIT
MC68HC705J2S HCMOS MICROCONTROLLER UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC05P8P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P9 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC05P9A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9ACDW 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05P9ACP 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*