PIC18F4580-I/P Microchip Technology Inc., PIC18F4580-I/P Datasheet - Page 60
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PIC18F4580-I/P
Manufacturer Part Number
PIC18F4580-I/P
Description
40 PIN, 32 KB FLASH, 1536 RAM, 36 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F4580-IP.pdf
(402 pages)
Specifications of PIC18F4580-I/P
A/d Inputs
11-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
CAN/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
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4.14
The Reset Control (RCON) register contains flag bits
that allow differentiation between the sources of a
device Reset. These flags include the TO, PD, POR,
BOR and RI bits. This register is readable and writable.
REGISTER 4-3:
DS41159D-page 58
PIC18FXX8
RCON Register
bit 7
bit 6-5
bit 4
bit 3
bit 2
bit 1
bit 0
RCON: RESET CONTROL 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
1 = The RESET instruction was not executed
0 = The RESET instruction was executed causing a device Reset
TO: Watchdog Time-out Flag bit
1 = After power-up, CLRWDT instruction or SLEEP instruction
0 = A WDT time-out occurred
PD: Power-down Detection Flag bit
1 = After power-up or by the CLRWDT instruction
0 = By execution of the SLEEP instruction
POR: Power-on Reset Status bit
1 = A Power-on Reset has not occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
BOR: Brown-out Reset Status bit
1 = A Brown-out Reset has not occurred
0 = A Brown-out Reset occurred (must be set in software after a Brown-out Reset occurs)
Legend:
R = Readable bit
-n = Value at POR
R/W-0
IPEN
(must be set in software after a Brown-out Reset occurs)
U-0
—
U-0
—
W = Writable bit
‘1’ = Bit is set
R/W-1
RI
Note 1: If the BOREN configuration bit is set,
2: It is recommended that the POR bit be set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W
TO
BOR is ‘1’ on Power-on Reset. If the
BOREN configuration bit is clear, BOR is
unknown on Power-on Reset.
The BOR status bit is a “don’t care” and is
not necessarily predictable if the brown-
out circuit is disabled (the BOREN config-
uration bit is clear). BOR must then be set
by the user and checked on subsequent
Resets to see if it is clear, indicating a
brown-out has occurred.
after a Power-on Reset has been
detected, so that subsequent Power-on
Resets may be detected.
R/W
PD
2004 Microchip Technology Inc.
x = Bit is unknown
R/W-0
POR
R/W-0
BOR
bit 0
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