PIC16F721-I/SO Microchip Technology, PIC16F721-I/SO Datasheet - Page 41

• Manufacturer Part Number: PIC16F721-I/SO
• Description: MCU PIC 4K FLASH 20-SOIC
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F721-I/SO

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Core Processor: PIC
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Number Of I /o: 17
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Controller Family/series: PIC16F
• No. Of I/o's: 18
• Ram Memory Size: 256Byte
• Cpu Speed: 16MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.5.2
The PIE1 register contains the interrupt enable bits, as
shown in
REGISTER 4-2:
 2010 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
TMR1GIE
R/W-0
Register
PIE1 REGISTER
TMR1GIE: Timer1 Gate Interrupt Enable bit
1 = Enable the Timer1 gate acquisition complete interrupt
0 = Disable the Timer1 gate acquisition complete interrupt
ADIE: A/D Converter (ADC) Interrupt Enable bit
1 = Enables the ADC interrupt
0 = Disables the ADC interrupt
RCIE: USART Receive Interrupt Enable bit
1 = Enables the USART receive interrupt
0 = Disables the USART receive interrupt
TXIE: USART Transmit Interrupt Enable bit
1 = Enables the USART transmit interrupt
0 = Disables the USART transmit interrupt
SSPIE: Synchronous Serial Port (SSP) Interrupt Enable bit
1 = Enables the SSP interrupt
0 = Disables the SSP interrupt
CCP1IE: CCP1 Interrupt Enable bit
1 = Enables the CCP1 interrupt
0 = Disables the CCP1 interrupt
TMR2IE: TMR2 to PR2 Match Interrupt Enable bit
1 = Enables the Timer2 to PR2 match interrupt
0 = Disables the Timer2 to PR2 match interrupt
TMR1IE: Timer1 Overflow Interrupt Enable bit
1 = Enables the Timer1 overflow interrupt
0 = Disables the Timer1 overflow interrupt
4-2.
R/W-0
ADIE
PIE1: PERIPHERAL INTERRUPT ENABLE REGISTER 1
W = Writable bit
‘1’ = Bit is set
R/W-0
RCIE
R/W-0
TXIE
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0
SSPIE
Note:
PIC16F/LF720/721
Bit PEIE of the INTCON register must be
set to enable any peripheral interrupt.
CCP1IE
R/W-0
x = Bit is unknown
TMR2IE
R/W-0
DS41430A-page 41
TMR1IE
R/W-0
bit 0