PIC16F872-I/SP Microchip Technology Inc., PIC16F872-I/SP Datasheet - Page 21

• Manufacturer Part Number: PIC16F872-I/SP
• Description: 28 PIN, 7 KB FLASH, 128 RAM, 22 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F872-I/SP

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 64 Bytes
• Input Output: 22
• Interface: I2C/SPI
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

2.2.2.8
The Power Control (PCON) Register contains flag bits
to allow differentiation between a Power-on Reset
(POR), a Brown-out Reset (BOR), a Watchdog Reset
(WDT) and an external MCLR Reset.
REGISTER 2-8:
© 2006 Microchip Technology Inc.
bit 7-2
bit 1
bit 0
PCON Register
PCON REGISTER (ADDRESS: 8Eh)
bit 7
Unimplemented: Read as '0'
1 = No Power-on Reset occurred
0 = A Power-on Reset occurred (must be set in software after a Power-on Reset occurs)
1 = No Brown-out Reset 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
POR: Power-on Reset Status bit
BOR: Brown-out Reset Status bit
U-0
—
U-0
—
U-0
—
W = Writable bit
’1’ = Bit is set
U-0
—
Note:
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
BOR is unknown on POR. It must be set by
the user and checked on subsequent
RESETS to see if BOR is clear, indicating
a brown-out has occurred. The BOR status
bit is a don’t care and is not predictable if
the brown-out circuit is disabled (by clear-
ing the BODEN bit in the Configuration
Word).
—
U-0
—
PIC16F872
x = Bit is unknown
R/W-0
POR
DS30221C-page 19
R/W-1
BOR
bit 0