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參數(shù)資料
| 型號(hào)： | AT89C5115-RATUM |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 4/113頁(yè) |
| 文件大小： | 0K |
| 描述： | IC 8051 MCU FLASH 16K 32VQFP |
| 產(chǎn)品培訓(xùn)模塊： | MCU Product Line Introduction |
| 標(biāo)準(zhǔn)包裝： | 1,250 |
| 系列： | 89C |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 40MHz |
| 連通性： | UART/USART |
| 外圍設(shè)備： | POR，PWM，WDT |
| 輸入/輸出數(shù)： | 20 |
| 程序存儲(chǔ)器容量： | 16KB（16K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大?。?/td> | 2K x 8 |
| RAM 容量： | 512 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 3 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x10b |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 32-LQFP |
| 包裝： | 托盤 |
| 配用： | AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU |
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2007-2011 Microchip Technology Inc.
DS70265E-page 101
dsPIC33FJ12MC201/202
7.4
Interrupt Setup Procedures
7.4.1
INITIALIZATION
To configure an interrupt source at initialization:
1.
Set the NSTDIS bit (INTCON1<15>) if nested
interrupts are not desired.
2.
Select the user-assigned priority level for the
interrupt source by writing the control bits into
the appropriate IPCx register. The priority level
will depend on the specific application and type
of interrupt source. If multiple priority levels are
not desired, the IPCx register control bits for all
enabled interrupt sources can be programmed
to the same non-zero value.
3.
Clear the interrupt flag status bit associated with
the peripheral in the associated IFSx register.
4.
Enable the interrupt source by setting the inter-
rupt enable control bit associated with the
source in the appropriate IECx register.
7.4.2
INTERRUPT SERVICE ROUTINE
(ISR)
The method used to declare an Interrupt Service
Routine (ISR) and initialize the IVT with the correct
vector address depends on the programming language
(C or assembler) and the language development tool
suite used to develop the application.
In general, the user application must clear the interrupt
flag in the appropriate IFSx register for the source of
interrupt that the ISR handles. Otherwise, program will
re-enter the ISR immediately after exiting the routine. If
the ISR is coded in assembly language, it must be
terminated using a RETFIE instruction to unstack the
saved PC value, SRL value and old CPU priority level.
7.4.3
TRAP SERVICE ROUTINE (TSR)
A Trap Service Routine (TSR) is coded like an ISR,
except that the appropriate trap status flag in the
INTCON1 register must be cleared to avoid re-entry
into the TSR.
7.4.4
INTERRUPT DISABLE
All user interrupts can be disabled using this
procedure:
1.
Push the current SR value onto the software
stack using the PUSH instruction.
2.
Force the CPU to priority level 7 by inclusive
ORing the value OEh with SRL.
To enable user interrupts, the POP instruction can be
used to restore the previous SR value.
The DISI instruction provides a convenient way to
disable interrupts of priority levels 1-6 for a fixed period
of time. Level 7 interrupt sources are not disabled by
the DISI instruction.
Note:
At a device Reset, the IPCx registers
are initialized such that all user inter-
rupt sources are assigned to priority
level 4.
Note:
Only user interrupts with a priority level of
7 or lower can be disabled. Trap sources
(level 8-level 15) cannot be disabled.
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參數(shù)描述 |
|---|---|
| AT89C5115-SISUM | 功能描述:8位微控制器 -MCU C51 16K Flash ADC 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 |
| AT89C5115-TISUM | 功能描述:8位微控制器 -MCU 16K Flash ADC 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 |
| AT89C51-16AA | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K Bytes Flash |
| AT89C51-16AC | 功能描述:8位微控制器 -MCU Microcontroller 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 |
| AT89C51-16AI | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K Bytes Flash |
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