參數(shù)資料
型號： MC68HC705C8ACP
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, 2.1 MHz, MICROCONTROLLER, PDIP40
封裝： PLASTIC, DIP-40
文件頁數(shù)： 75/108頁
文件大?。?/td> 718K
代理商： MC68HC705C8ACP
Interrupts
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
75
8.3.3 Timer Interrupts
The timer can generate the following interrupt requests:
Real time
Timer overflow
Setting the I bit in the condition code register disables timer interrupts.
8.3.3.1 Real-Time Interrupt
A real-time interrupt occurs if the real-time interrupt flag, RTIF, becomes set while the real-time interrupt
enable bit, RTIE, is also set. RTIF and RTIE are in the timer status and control register.
8.3.3.2 Timer Overflow Interrupt
A timer overflow interrupt request occurs if the timer overflow flag, TOF, becomes set while the timer
overflow interrupt enable bit, TOIE, is also set. TOF and TOIE are in the timer status and control register.
8.3.4 Interrupt Processing
The CPU takes the following actions to begin servicing an interrupt:
Stores the CPU registers on the stack in the order shown in
Figure 8-6
Sets the I bit in the condition code register to prevent further interrupts
Loads the program counter with the contents of the appropriate interrupt vector locations:
–
$07FC and $07FD (software interrupt vector)
–
$07FA and $07FB (external interrupt vector)
–
$07F8 and $07F9 (timer interrupt vector)
The return-from-interrupt (RTI) instruction causes the CPU to recover the CPU registers from the stack
as shown in
Figure 8-6
.
相關(guān)PDF資料
PDF描述
MC68HC705C8ACFS HCMOS Microcontroller Unit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705C8ACPB 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8ACPE 制造商:Freescale Semiconductor 功能描述:
MC68HC705C8AFNE 功能描述:8位微控制器 -MCU HC05 CORE + 8K RAM + EPR 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 最大時鐘頻率:50 MHz 程序存儲器大小: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
MC68HC705C8AFU 制造商:Rochester Electronics LLC 功能描述:8-BIT MCU W/BLANK EPROM - Bulk
MC68HC705C8AVFB 制造商:Rochester Electronics LLC 功能描述:- Bulk
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