PIC16F72-I/SO Microchip Technology Inc., PIC16F72-I/SO Datasheet - Page 19

• Manufacturer Part Number: PIC16F72-I/SO
• Description: 28 PIN, 3.5 KB FLASH, 128 RAM, 22 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F72-I/SO

• A/d Inputs: 5-Channel, 8-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 22
• Interface: I2C/SPI
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SOIC
• 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

2.2.2.6
The Power Control (PCON) register contains a flag bit
to allow differentiation between a Power-on Reset
(POR), a Brown-out Reset, an external MCLR Reset
and WDT Reset.
REGISTER 2-6:
 2002 Microchip Technology Inc.
Note:
bit 7-2
bit 1
bit 0
Interrupt flag bits get set when an interrupt
condition occurs, regardless of the state of
its corresponding enable bit or the global
enable bit, GIE (INTCON<7>). User soft-
ware should ensure the appropriate inter-
rupt flag bits are clear prior to enabling an
interrupt.
PCON Register
PCON: POWER CONTROL REGISTER (ADDRESS 8Eh)
bit 7
Unimplemented: Read as ‘0’
POR: Power-on Reset Status bit
1 = No Power-on Reset 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 = 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
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
BOR is unknown on Power-on Reset. It
must then 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 necessarily predictable if the brown-out
circuit is disabled (by clearing the BOREN
bit in the Configuration word).
U-0
—
U-0
—
PIC16F72
x = Bit is unknown
R/W-0
POR
DS39597B-page 17
R/W-x
BOR
bit 0