PIC16F72 datasheet(68/136 Pages) MICROCHIP

Part #	PIC16F72

Description	28-Pin, 8-Bit CMOS FLASH MCU with A/D Converter

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Manufacturer	MICROCHIP [Microchip Technology]

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68 / 136 page

PIC16F72

DS39597B-page 66

 2002 Microchip Technology Inc.

TABLE 11-6:

INITIALIZATION CONDITIONS FOR ALL REGISTERS

Register

Power-on Reset,

Brown-out Reset

MCLR Reset,

WDT Reset

Wake-up via WDT or

Interrupt

W

xxxx xxxx

uuuu uuuu

INDF

N/A

TMR0

xxxx xxxx

uuuu uuuu

PCL

0000h

PC + 1(2)

STATUS

0001 1xxx

000q quuu(3)

uuuq quuu(3)

FSR

xxxx xxxx

uuuu uuuu

PORTA

--0x 0000

--0u 0000

--uu uuuu

PORTB

xxxx xxxx

uuuu uuuu

PORTC

xxxx xxxx

uuuu uuuu

PCLATH

---0 0000

---u uuuu

INTCON

0000 000x

0000 000u

uuuu uuuu(1)

PIR1

-0-- 0000

-u-- uuuu(1)

TMR1L

xxxx xxxx

uuuu uuuu

TMR1H

xxxx xxxx

uuuu uuuu

T1CON

--00 0000

--uu uuuu

TMR2

0000 0000

uuuu uuuu

T2CON

-000 0000

-uuu uuuu

SSPBUF

xxxx xxxx

uuuu uuuu

SSPCON

0000 0000

uuuu uuuu

CCPR1L

xxxx xxxx

uuuu uuuu

CCPR1H

xxxx xxxx

uuuu uuuu

CCP1CON

--00 0000

--uu uuuu

ADRES

xxxx xxxx

uuuu uuuu

ADCON0

0000 00-0

uuuu uu-u

OPTION

1111 1111

uuuu uuuu

TRISA

--11 1111

--uu uuuu

TRISB

1111 1111

uuuu uuuu

TRISC

1111 1111

uuuu uuuu

PIE1

-0-- 0000

-u-- uuuu

PCON

---- --qq

---- --uu

PR2

1111 1111

SSPADD

0000 0000

uuuu uuuu

SSPSTAT

--00 0000

--uu uuuu

ADCON1

---- -000

---- -uuu

PMDATL

0--- 0000

u--- uuuu

PMADRL

xxxx xxxx

uuuu uuuu

PMDATH

xxxx xxxx

uuuu uuuu

PMADRH

xxxx xxxx

uuuu uuuu

PMCON1

1--- ---0

1--- ---u

Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ’0’, q = value depends on condition,

r

= reserved, maintain clear.

Note 1: One or more bits in INTCON, PIR1 will be affected (to cause wake-up).

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

(0004h).

3: See Table 11-5 for RESET value for specific condition.

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