參數(shù)資料
型號(hào): PIC16LF720-E/SO
廠商: Microchip Technology
文件頁數(shù): 71/135頁
文件大小: 0K
描述: MCU PIC 3.5KB FLASH 20SOIC
標(biāo)準(zhǔn)包裝: 38
系列: PIC® XLP™ 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 16MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 17
程序存儲(chǔ)器容量: 3.5KB(2K x 14)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 12x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 125°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 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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