PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 104

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

Specifications of PIC18F4431-E/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• 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 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
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
9.4
The IPR registers contain the individual priority bits for
the peripheral interrupts. Due to the number of
peripheral interrupt sources, there are two peripheral
interrupt priority registers (IPR1, IPR2). Using the
priority bits requires that the Interrupt Priority Enable
(IPEN) bit be set.
REGISTER 9-10:
DS39616B-page 102
IPR Registers
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
IPR1: PERIPHERAL INTERRUPT PRIORITY REGISTER 1
bit 7
Unimplemented: Read as ‘0’
ADIP: A/D Converter Interrupt Priority bit
1 = High priority
0 = Low priority
RCIP: USART Receive Interrupt Priority bit
1 = High priority
0 = Low priority
TXIP: USART Transmit Interrupt Priority bit
1 = High priority
0 = Low priority
SSPIP: 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
Legend:
R = Readable bit
- n = Value at POR
U-0
—
R/W-1
ADIP
R/W-1
RCIP
Preliminary
W = Writable bit
‘1’ = Bit is set
R/W-1
TXIP
SSPIP
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
CCP1IP
R/W-1
 2003 Microchip Technology Inc.
x = Bit is unknown
TMR2IP
R/W-1
TMR1IP
R/W-1
bit 0