PIC16F628A-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F628A-I/SO

Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F627A/628A/648A

TABLE 14-5: SUMMARY OF REGISTERS ASSOCIATED WITH BROWN-OUT RESET

Address Name Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR Reset

Value on all

other

Resets(1)

03h, 83h, STATUS IRP

RP1

RPO

TO

PD

Z

DC

C

0001 1xxx 000q quuu

103h, 183h

8Eh

PCON

—

—

—

—

OSCF

—

POR

BOR ---- 1-0x ---- u-uq

Legend:

Note 1:

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

Shaded cells are not used by Brown-out Reset.

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

TABLE 14-6: INITIALIZATION CONDITION FOR SPECIAL REGISTERS

Condition

Program

Counter

Status

Register

PCON

Register

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.

© 2007 Microchip Technology Inc.

DS40044F-page 103

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