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參數(shù)資料
| 型號： | MC68HC705P6ADW |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 66/98頁 |
| 文件大小： | 532K |
| 代理商： | MC68HC705P6ADW |
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Registers
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
Freescale Semiconductor
69
I — Interrupt Mask Bit
When the interrupt mask is set, the internal and external interrupts are disabled. Interrupts are enabled
when the interrupt mask is cleared. When an interrupt occurs, the interrupt mask is automatically set
after the CPU registers are saved on the stack, but before the interrupt vector is fetched. If an interrupt
request occurs while the interrupt mask is set, the interrupt request is latched. Normally, the interrupt
is processed as soon as the interrupt mask is cleared.
A return from interrupt (RTI) instruction pulls the CPU registers from the stack, restoring the interrupt
mask to its state before the interrupt was encountered. After any reset, the interrupt mask is set and
can only be cleared by the clear I bit (CLI), STOP, or WAIT instructions.
N — Negative Bit
The negative bit is set when the result of the last arithmetic operation, logical operation, or data
manipulation was negative. (Bit 7 of the result was a logic one.)
The negative bit can also be used to check an often-tested flag by assigning the flag to bit 7 of a
register or memory location. Loading the accumulator with the contents of that register or location then
sets or clears the negative bit according to the state of the flag.
Z — Zero Bit
The zero bit is set when the result of the last arithmetic operation, logical operation, data manipulation,
or data load operation was zero.
C — Carry/Borrow Bit
The carry/borrow bit is set when a carry out of bit 7 of the accumulator occurred during the last
arithmetic operation, logical operation, or data manipulation. The carry/borrow bit is also set or cleared
during bit test and branch instructions and during shifts and rotates. This bit is not set by an INC or
DEC instruction.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC705P6AMDW | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC705P6AMDWER2 | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC705P6ASD | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER |
| MC68HC705P6AMDWR2 | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC705P6ASD | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC705P6AMDW | 功能描述:IC MCU 4.6K OTP 2.1MHZ 28-SOIC RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 標準包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲器容量:40KB（20K x 16） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| MC68HC705P6AMP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC68HC705P6CDW | 制造商:Motorola Inc 功能描述: |
| MC68HC705P6CP | 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述: |
| MC68HC705P6ECDW | 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
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