PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 107

• 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

9.5
The RCON register contains bits used to determine the
cause of the last Reset or wake-up from power-
managed mode. RCON also contains the bit that
enables interrupt priorities (IPEN).
REGISTER 9-13:
 2003 Microchip Technology Inc.
RCON Register
bit 7
bit 6-5
bit 4
bit 3
bit 2
bit 1
bit 0
RCON REGISTER
bit 7
IPEN: Interrupt Priority Enable bit
1 = Enable priority levels on interrupts
0 = Disable priority levels on interrupts (PIC16CXXX Compatibility mode)
Unimplemented: Read as ‘0’
RI: RESET Instruction Flag bit
For details of bit operation, see Register 5-3
TO: Watchdog Time-out Flag bit
For details of bit operation, see Register 5-3
PD: Power-down Detection Flag bit
For details of bit operation, see Register 5-3
POR: Power-on Reset Status bit
For details of bit operation, see Register 5-3
BOR: Brown-out Reset Status bit
For details of bit operation, see Register 5-3
Legend:
R = Readable bit
- n = Value at POR
R/W-0
IPEN
U-0
—
PIC18F2331/2431/4331/4431
Preliminary
U-0
W = Writable bit
‘1’ = Bit is set
—
R/W-1
RI
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R-1
TO
R-1
PD
x = Bit is unknown
R/W-0
POR
DS39616B-page 105
R/W-0
BOR
bit 0