PIC18F4520-I/P Microchip Technology Inc., PIC18F4520-I/P Datasheet - Page 104

• Manufacturer Part Number: PIC18F4520-I/P
• Description: 40 Pin, 32 KB Flash, 1536 RAM, 36 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F4520-I/P

• A/d Inputs: 13-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 32K Bytes
• Ram Size: 1.5K Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2420/2520/4420/4520
9.5
The RCON register contains flag bits which are used to
determine the cause of the last Reset or wake-up from
Idle or Sleep modes. RCON also contains the IPEN bit
which enables interrupt priorities.
REGISTER 9-10:
DS39631A-page 102
RCON Register
bit 7
bit 6
bit 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 (PIC16XXX Compatibility mode)
SBOREN: Software BOR Enable bit
For details of bit operation, see Register 4-1.
Unimplemented: Read as ‘0’
RI: RESET Instruction Flag bit
For details of bit operation, see Register 4-1.
TO: Watchdog Time-out Flag bit
For details of bit operation, see Register 4-1.
PD: Power-down Detection Flag bit
For details of bit operation, see Register 4-1.
POR: Power-on Reset Status bit
For details of bit operation, see Register 4-1.
BOR: Brown-out Reset Status bit
For details of bit operation, see Register 4-1.
Legend:
R = Readable bit
-n = Value at POR
R/W-0
Note 1: Actual Reset values are determined by device configuration and the nature of the
IPEN
device Reset. See Register 4-1 for additional information.
SBOREN
R/W-1
(1)
Preliminary
U-0
W = Writable bit
‘1’ = Bit is set
—
(1)
R/W-1
The operation of the SBOREN bit and the Reset flag
bits is discussed in more detail in Section 4.1 “RCON
Register”.
RI
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R-1
TO
R-1
PD
 2004 Microchip Technology Inc.
R/W-0
POR
x = Bit is unknown
(1)
R/W-0
BOR
bit 0