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參數(shù)資料
| 型號(hào)： | MC68HC11K1MFN3 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Aluminum Electrolytic Radial Lead 5mm Length Capacitor; Capacitance: 33uF; Voltage: 50V; Case Size: 8x5 mm; Packaging: Bulk |
| 中文描述： | 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC84 |
| 封裝： | PLASTIC, LCC-84 |
| 文件頁數(shù)： | 38/80頁 |
| 文件大小： | 420K |
| 代理商： | MC68HC11K1MFN3 |
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MOTOROLA
38
M68HC11 K Series
MC68HC11KTS/D
5 Resets and Interrupts
All M68HC11 MCUs have three reset vectors and 18 interrupt vectors. The reset vectors are as follows:
RESET, or Power-On Reset
Clock Monitor Fail
COP Failure
The 18 interrupt vectors service 22 interrupt sources (three nonmaskable, 19 maskable). The three non-
maskable interrupt sources are as follows:
XIRQ Pin (X-Bit Interrupt)
Illegal Opcode Trap
Software Interrupt
On-chip peripheral systems generate maskable interrupts, which are recognized only if the global inter-
rupt mask bit (I) in the condition code register (CCR) is clear. Maskable interrupts are prioritized accord-
ing to a default arrangement; however, any one source can be elevated to the highest maskable priority
position by a software-accessible control register (HPRIO). The HPRIO register can be written at any
time, provided bit I in the CCR is set.
Nineteen interrupt sources in the M68HC11 K series devices are subject to masking by the global inter-
rupt mask bit (bit I in the CCR). In addition to the global bit I, all of these sources, except the external
interrupt (IRQ) pin, are controlled by local enable bits in control registers. Most interrupt sources in
M68HC11 devices have separate interrupt vectors; therefore, there is usually no need for software to
poll control registers to determine the cause of an interrupt.
For some interrupt sources, such as the SCI interrupts, the flags are automatically cleared during the
normal course of responding to the interrupt requests. For example, the RDRF flag in the SCI system
is cleared by the automatic clearing mechanism invoked by a read of the SCI status register while RDRF
is set, followed by a read of the SCI data register. The normal response to an RDRF interrupt request
would be to read the SCI status register to check for receive errors, then to read the received data from
the SCI data register. These two steps satisfy the automatic clearing mechanism without requiring any
special instructions.
Refer to the following table for a list of interrupt and reset vector assignments.
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| MC68HC11K1CFU3 | 8-BIT MICROCONTROLLER |
| MC68HC11K4CFU3 | Technical Summary 8-Bit Microcontroller |
| MC68HC11K4BCFU4 | 8-BIT MICROCONTROLLER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC11K1MFN4 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K1VFN2 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K1VFN3 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller |
| MC68HC11K1VFN4 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K1VFNE4 | 功能描述:8位微控制器 -MCU 8B MCU 768 RAM - EPP 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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