PIC16LF874A-I/PT Microchip Technology, PIC16LF874A-I/PT Datasheet - Page 26

• Manufacturer Part Number: PIC16LF874A-I/PT
• Description: IC, 8BIT MCU, PIC16LF, 20MHZ, TQFP-44
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16LF874A-I/PT

• Controller Family/series: PIC16LF
• No. Of I/o's: 33
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Core Size: 8 Bit
• Program Memory Size: 4 Kwords
• Core Processor: PIC
• Speed: 10MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F87XA
2.2.2.3
The INTCON register is a readable and writable regis-
ter, which contains various enable and flag bits for the
TMR0 register overflow, RB port change and external
RB0/INT pin interrupts.
REGISTER 2-3:
DS39582B-page 24
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
INTCON Register
INTCON REGISTER (ADDRESS 0Bh, 8Bh, 10Bh, 18Bh)
bit 7
GIE: Global Interrupt Enable bit
1 = Enables all unmasked interrupts
0 = Disables all interrupts
PEIE: Peripheral Interrupt Enable bit
1 = Enables all unmasked peripheral interrupts
0 = Disables all peripheral interrupts
TMR0IE: TMR0 Overflow Interrupt Enable bit
1 = Enables the TMR0 interrupt
0 = Disables the TMR0 interrupt
INTE: RB0/INT External Interrupt Enable bit
1 = Enables the RB0/INT external interrupt
0 = Disables the RB0/INT external interrupt
RBIE: RB Port Change Interrupt Enable bit
1 = Enables the RB port change interrupt
0 = Disables the RB port change interrupt
TMR0IF: TMR0 Overflow Interrupt Flag bit
1 = TMR0 register has overflowed (must be cleared in software)
0 = TMR0 register did not overflow
INTF: RB0/INT External Interrupt Flag bit
1 = The RB0/INT external interrupt occurred (must be cleared in software)
0 = The RB0/INT external interrupt did not occur
RBIF: RB Port Change Interrupt Flag bit
1 = At least one of the RB7:RB4 pins changed state; a mismatch condition will continue to set
0 = None of the RB7:RB4 pins have changed state
Legend:
R = Readable bit
- n = Value at POR
R/W-0
GIE
the bit. Reading PORTB will end the mismatch condition and allow the bit to be cleared
(must be cleared in software).
R/W-0
PEIE
TMR0IE
R/W-0
W = Writable bit
‘1’ = Bit is set
R/W-0
INTE
Note:
R/W-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
RBIE
Interrupt flag bits are set when an interrupt
condition occurs regardless of the state of its
corresponding enable bit or the global
enable bit, GIE (INTCON<7>). User software
should ensure the appropriate interrupt flag
bits are clear prior to enabling an interrupt.
TMR0IF
R/W-0
 2003 Microchip Technology Inc.
x = Bit is unknown
R/W-0
INTF
R/W-x
RBIF
bit 0