PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 108

• Manufacturer Part Number: PIC18F4431-E/ML
• Description: IC MCU FLASH 8KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
10.4
The IPR registers contain the individual priority bits for
the peripheral interrupts. Due to the number of
peripheral interrupt sources, there are three peripheral
interrupt priority registers (IPR1, IPR2 and IPR3).
Using the priority bits requires that the Interrupt Priority
Enable (IPEN) bit be set.
REGISTER 10-10: IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1
DS39616D-page 108
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
U-0
—
IPR Registers
Unimplemented: Read as ‘0’
ADIP: A/D Converter Interrupt Priority bit
1 = High priority
0 = Low priority
RC1IP: EUSART Receive Interrupt Priority bit
1 = High priority
0 = Low priority
TX1IP: EUSART Transmit Interrupt Priority bit
1 = High priority
0 = Low priority
SSP1IP: Synchronous Serial Port Interrupt Priority bit
1 = High priority
0 = Low priority
CCP1IP: CCP1 Interrupt Priority bit
1 = High priority
0 = Low priority
TMR2IP: TMR2 to PR2 Match Interrupt Priority bit
1 = High priority
0 = Low priority
TMR1IP: TMR1 Overflow Interrupt Priority bit
1 = High priority
0 = Low priority
R/W-1
ADIP
W = Writable bit
‘1’ = Bit is set
R/W-1
RCIP
R/W-1
TXIP
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
SSPIP
R/W-1
CCPIP
R/W-1
 2010 Microchip Technology Inc.
x = Bit is unknown
TMR2IP
R/W-1
TMR1IP
R/W-1
bit 0