Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller SOIC 28 8-Bit 4 MHz I/O number 22

 1997-2013 Microchip Technology Inc. DS30234E-page 47

PIC16C6X

4.2.2.8 PCON REGISTER

The Power Control register (PCON) contains a flag bit

to allow differentiation between a Power-on Reset to an

external MCLR

reset or WDT reset. Those devices with

brown-out detection circuitry contain an additional bit to

differentiate a Brown-out Reset condition from a Power-

on Reset condition.

Applicable Devices

61 62 62A R62 63 R63 64 64A R64 65 65A R65 66 67

Note: BOR is unknown on Power-on Reset. It

must then be set by the user and checked

on subsequent resets to see if BOR

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 BODEN

bit in the Configuration word).

FIGURE 4-22: PCON REGISTER FOR PIC16C62/64/65 (ADDRESS 8Eh)

FIGURE 4-23: PCON REGISTER FOR PIC16C62A/R62/63/R63/64A/R64/65A/R65/66/67

(ADDRESS 8Eh)

U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-q

— — — — — —POR— R = Readable bit

W = Writable bit

U = Unimplemented bit,

read as ‘0’

- n = Value at POR reset

q = value depends on conditions

bit7 bit0

bit 7-2: Unimplemented: Read as '0'

bit 1: 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)

bit 0: Reserved

This bit should be set upon a Power-on Reset by user software and maintained as set. Use of this bit as a general

purpose read/write bit is not recommended, since this may affect upward compatibility with future products.