参数资料
型号: PIC16F872-E/SS
厂商: Microchip Technology
文件页数: 123/167页
文件大小: 0K
描述: IC MCU CMOS 20MHZ 2K FLSH 28SSOP
产品培训模块: Asynchronous Stimulus
标准包装: 47
系列: PIC® 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,SPI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 22
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 5.5 V
数据转换器: A/D 5x10b
振荡器型: 外部
工作温度: -40°C ~ 125°C
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
包装: 管件
59
8048C–AVR–02/12
ATtiny43U
<continued>
0x0005
rjmp
TIM1_COMPA
; Timer1 Compare A Handler
0x0006
rjmp
TIM1_COMPB
; Timer1 Compare B Handler
0x0007
rjmp
TIM1_OVF
; Timer1 Overflow Handler
0x0008
rjmp
TIM0_COMPA
; Timer0 Compare A Handler
0x0009
rjmp
TIM0_COMPB
; Timer0 Compare B Handler
0x000A
rjmp
TIM0_OVF
; Timer0 Overflow Handler
0x000B
rjmp
ANA_COMP
; Analog Comparator Handler
0x000C
rjmp
ADC
; ADC Conversion Handler
0x000D
rjmp
EE_RDY
; EEPROM Ready Handler
0x000E
rjmp
USI_STR
; USI Start Handler
0x000F
rjmp
USI_OVF
; USI Overflow Handler
;
0x0010
RESET: ldi
r16, low(RAMEND); Main program start
0x0011
out
SPL,r16
; Set Stack Pointer to top of RAM
0x0012
sei
; Enable interrupts
0x0013
<instr>
xxx
...
10.2
External Interrupts
The External Interrupts are triggered by the INT0 pin or any of the PCINT pins. Observe that, if
enabled, the interrupts will trigger even if INT0 or the PCINT pins are configured as outputs. This
feature provides a way of generating a software interrupt, as follows.
Pin Change Interrupt PCI0 triggers if a pin in PCINT[7:0] is toggled while enabled
Pin Change Interrupt PCI1 triggers if a pin in PCINT[15:8] is toggled while enabled
The PCMSK0 and PCMSK1 Registers control which pins contribute to the pin change interrupts.
Pin change interrupts on PCINT[15:0] are detected asynchronously. This means that these inter-
rupts can be used for waking the part also from sleep modes other than Idle mode.
The INT0 interrupt can be triggered by a falling or rising edge, or a low level. This is configured
as described in “MCUCR – MCU Control Register” on page 60. When the INT0 interrupt is
enabled and is configured as level triggered, the interrupt will trigger as long as the pin is held
low. Low level and edge interrupts on INT0 are detected asynchronously. This implies that these
interrupts can be used for waking the part also from sleep modes other than Idle mode. The I/O
clock is halted in all sleep modes except Idle mode.
Note that if a level triggered interrupt is used for wake-up from Power-down, the required level
must be held long enough for the MCU to complete the wake-up to trigger the level interrupt.
If the level disappears before the end of the Start-up Time, the MCU will still wake up, but no
interrupt will be generated and execution will continue from the instruction following the SLEEP
command. The start-up time is defined by the SUT and CKSEL fuses, as described in “System
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PIC16F872-I/SP 制造商:Microchip Technology Inc 功能描述:IC 8BIT FLASH MCU 16F872 SDIL28