PIC16C662-10I/SP Microchip Technology, PIC16C662-10I/SP Datasheet - Page 26

• Manufacturer Part Number: PIC16C662-10I/SP
• Description: 8-Bit EPROM Microcontrollers with Analog Comparators
• Manufacturer: Microchip Technology

PIC16C64X & PIC16C66X
4.2.2.6
The PCON register contains flag bits to differentiate
between a Power-on Reset (POR), an external MCLR
reset, WDT reset, Brown-out Reset (BOR), and Parity
Error Reset (PER). The PCON register also contains a
status bit, MPEEN, which reflects the value of the
MPEEN bit in Configuration Word. See Table 9-4 for
status of these bits on various resets.
FIGURE 4-10: PCON REGISTER (ADDRESS 8Eh)
DS30559A-page 26
bit7
bit 7:
bit 6-3: Unimplemented: Read as '0'
bit 2:
bit 1:
bit 0:
MPEEN
R-U
PCON REGISTER
MPEEN: Memory Parity Error Circuitry Status bit
Reflects the value of Configuration Word bit, MPEEN
PER: Memory Parity Error Reset Status bit
1 = No error occurred
0 = Program memory fetch parity error occurred
(must be set in software after a Parity Error Reset occurs)
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)
U-0
—
U-0
—
U-0
—
U-0
—
Preliminary
R/W-1
PER
R/W-0
POR
Note:
bit0
R/W-u
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
cleared,
occurred. The BOR status bit is a “don't
care” and is not necessarily predictable if
the brown-out circuit is disabled (by
programming the BODEN bit in the
Configuration word).
BOR
indicating
R= Readable bit
W= Writable bit
U= Unimplemented bit,
read as ‘0’
- n= Value at POR reset
1996 Microchip Technology Inc.
a
brown-out
has