参数资料
型号: PIC16LF720-I/SS
厂商: Microchip Technology
文件页数: 71/135页
文件大小: 0K
描述: MCU PIC 2K FLASH 20-SSOP
产品培训模块: 8-bit PIC® Microcontroller Portfolio
标准包装: 67
系列: PIC® XLP™ 16F
核心处理器: PIC
芯体尺寸: 8-位
速度: 16MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 17
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.6 V
数据转换器: A/D 12x8b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
包装: 管件
PIC16(L)F720/721
DS41430C-page 40
Preliminary
2010-2011 Microchip Technology Inc.
4.5.1
INTCON REGISTER
The INTCON register is a readable and writable
register, which contains the various enable and flag bits
for TMR0 register overflow, PORTB change and
external RA2/INT pin interrupts.
Note:
Interrupt flag bits are set when an interrupt
condition occurs, regardless of the state of
its corresponding enable bit or the Global
Interrupt Enable bit, GIE of the INTCON
register. User software should ensure the
appropriate interrupt flag bits are clear
prior to enabling an interrupt.
REGISTER 4-1:
INTCON: INTERRUPT CONTROL REGISTER
R/W-0
R/W-x
GIE
PEIE
TMR0IE
INTE
RABIE(1)
TMR0IF(2)
INTF
RABIF
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
GIE: Global Interrupt Enable bit
1 = Enables all unmasked interrupts
0 = Disables all interrupts
bit 6
PEIE: Peripheral Interrupt Enable bit
1 = Enables all unmasked peripheral interrupts
0 = Disables all peripheral interrupts
bit 5
TMR0IE: Timer0 Overflow Interrupt Enable bit
1 = Enables the Timer0 interrupt
0 = Disables the Timer0 interrupt
bit 4
INTE: INT External Interrupt Enable bit
1 = Enables the INT external interrupt
0 = Disables the INT external interrupt
bit 3
RABIE: PORTA or PORTB Change Interrupt Enable bit(1)
1 = Enables the PORTA or PORTB change interrupt
0 = Disables the PORTA or PORTB change interrupt
bit 2
TMR0IF: Timer0 Overflow Interrupt Flag bit(2)
1 = TMR0 register has overflowed (must be cleared in software)
0 = TMR0 register did not overflow
bit 1
INTF: INT External Interrupt Flag bit
1 = The INT external interrupt occurred (must be cleared in software)
0 = The INT external interrupt did not occur
bit 0
RABIF: PORTA or PORTB Change Interrupt Flag bit
1 = When at least one of the PORTA or PORTB general purpose I/O pins changed state (must be
cleared in software)
0 = None of the PORTA or PORTB general purpose I/O pins have changed state
Note 1:
The appropriate bits in the IOCB register must also be set.
2:
TMR0IF bit is set when Timer0 rolls over. Timer0 is unchanged on Reset and should be initialized before
clearing TMR0IF bit.
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