PIC18LF4221-I/PT Microchip Technology, PIC18LF4221-I/PT Datasheet - Page 103

• Manufacturer Part Number: PIC18LF4221-I/PT
• Description: 4 KB Flash, 512 RAM 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF4221-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER 10-5:
© 2009 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
PIR2: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 2
PIC18F2221/2321/4221/4321 FAMILY
OSCFIF: Oscillator Fail Interrupt Flag bit
1 = Device oscillator failed, clock input has changed to INTOSC (must be cleared in software)
0 = Device clock operating
CMIF: Comparator Interrupt Flag bit
1 = Comparator input has changed (must be cleared in software)
0 = Comparator input has not changed
Unimplemented: Read as ‘0’
EEIF: Data EEPROM/Flash Write Operation Interrupt Flag bit
1 = The write operation is complete (must be cleared in software)
0 = The write operation is not complete or has not been started
BCLIF: Bus Collision Interrupt Flag bit
1 = A bus collision occurred (must be cleared in software)
0 = No bus collision occurred
HLVDIF: High/Low-Voltage Detect Interrupt Flag bit
1 = A high/low-voltage condition occurred; direction determined by VDIRMAG bit
0 = A high/low-voltage condition has not occurred
TMR3IF: TMR3 Overflow Interrupt Flag bit
1 = TMR3 register overflowed (must be cleared in software)
0 = TMR3 register did not overflow
CCP2IF: CCP2 Interrupt Flag bit
Capture mode:
1 = A TMR1 register capture occurred (must be cleared in software)
0 = No TMR1 register capture occurred
Compare mode:
1 = A TMR1 register compare match occurred (must be cleared in software)
0 = No TMR1 register compare match occurred
PWM mode:
Unused in this mode.
bit 7
Legend:
R = Readable bit
-n = Value at POR
OSCFIF
R/W-0
(HLVDCON<7>)
R/W-0
CMIF
U-0
W = Writable bit
‘1’ = Bit is set
—
R/W-0
EEIF
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
BCLIF
R/W-0
HLVDIF
R/W-0
TMR3IF
R/W-0
x = Bit is unknown
DS39689F-page 103
CCP2IF
R/W-0
bit 0