PIC16F628A-ESLASHML datasheet(102/168 Pages) MICROCHIP

102 / 168 page

PIC16F627A/628A/648A

DS40044A-page 100

Preliminary

 2002 Microchip Technology Inc.

TABLE 14-5:

SUMMARY OF REGISTERS ASSOCIATED WITH BROWN-OUT RESET

TABLE 14-6:

INITIALIZATION CONDITION FOR SPECIAL REGISTERS

Address

Name

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2

Bit 1Bit 0

Value on

POR Reset

Value on all

other

RESETS(1)

03h, 83h,

103h, 183h

STATUS

IRP

RP1

RPO

0001 1xxx

000q quuu

8Eh

PCON

—

OSCF

—POR

BOR

---- 1-0x

---- u-uq

Legend:

x = unknown, u = unchanged, - = unimplemented read as '0', q = value depends upon condition.

Shaded cells are not used by Brown-out Reset.

Note

1: Other (non Power-up) Resets include MCLR Reset, Brown-out Reset and Watchdog Timer Reset during normal operation.

Condition

Program

Counter

STATUS

PCON

Power-on Reset

000h

0001 1xxx

---- 1-0x

MCLR Reset during normal operation

000h

000u uuuu

---- 1-uu

MCLR Reset during SLEEP

000h

0001 0uuu

---- 1-uu

WDT Reset

000h

0000 uuuu

---- 1-uu

WDT Wake-up

PC + 1

uuu0 0uuu

---- u-uu

Brown-out Reset

000h

000x xuuu

---- 1-u0

Interrupt Wake-up from SLEEP

PC + 1(1)

uuu1 0uuu

---- u-uu

Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’.

Note

1: When the wake-up is due to an interrupt and global enable bit, GIE is set, the PC is loaded with the interrupt vector

(0004h) after execution of PC+1.

PIC16F628A-E/ML Datasheet(PDF) 102 Page - Microchip Technology

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