PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 27

• Manufacturer Part Number: PIC16F877A-I/PT
• Description: 44 PIN, 7 KB FLASH, 368 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F877A-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 14K Bytes
• Ram Size: 368 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:
 2001 Microchip Technology Inc.
bit 7-2
bit 1
bit 0
PCON Register
PCON REGISTER (ADDRESS 8Eh)
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)
bit 7
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
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
—
U-0
—
PIC16F87X
x = Bit is unknown
R/W-0
POR
DS30292C-page 25
R/W-1
BOR
bit 0