PIC16F8X_13 Datasheet, PDF(43/128 Page) Microchip Technology – 18-pin Flash/EEPROM 8-Bit Microcontrollers

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PIC16F8X_13 Datasheet, PDF (43/128 Pages) Microchip Technology – 18-pin Flash/EEPROM 8-Bit Microcontrollers

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PIC16F8X

TABLE 8-3 RESET CONDITION FOR PROGRAM COUNTER AND THE STATUS REGISTER

Condition

Program Counter STATUS Register

Power-on Reset

000h

0001 1xxx

MCLR Reset during normal operation

000h

000u uuuu

MCLR Reset during SLEEP

000h

0001 0uuu

WDT Reset (during normal operation)

000h

0000 1uuu

WDT Wake-up

PC + 1

uuu0 0uuu

Interrupt wake-up from SLEEP

PC + 1 (1)

uuu1 0uuu

Legend: u = unchanged, x = unknown.

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

(0004h).

TABLE 8-4 RESET CONDITIONS FOR ALL REGISTERS

Register

Address

Power-on Reset

MCLR Reset during:

â normal operation

â SLEEP

WDT Reset during nor-

mal operation

Wake-up from SLEEP:

â through interrupt

â through WDT Time-out

W

â

xxxx xxxx

uuuu uuuu

uuuu uuuu

INDF

00h

---- ----

---- ----

---- ----

TMR0

PCL

STATUS

01h

xxxx xxxx

02h

0000h

03h

0001 1xxx

uuuu uuuu

0000h

000q quuu(3)

uuuu uuuu

PC + 1(2)

uuuq quuu(3)

FSR

04h

xxxx xxxx

uuuu uuuu

uuuu uuuu

PORTA

05h

---x xxxx

---u uuuu

---u uuuu

PORTB

06h

xxxx xxxx

uuuu uuuu

uuuu uuuu

EEDATA

08h

xxxx xxxx

uuuu uuuu

uuuu uuuu

EEADR

09h

xxxx xxxx

uuuu uuuu

uuuu uuuu

PCLATH

INTCON

0Ah

---0 0000

0Bh

0000 000x

---0 0000

0000 000u

---u uuuu

uuuu uuuu(1)

INDF

80h

---- ----

---- ----

---- ----

OPTION_REG

81h

1111 1111

1111 1111

uuuu uuuu

PCL

STATUS

82h

0000h

83h

0001 1xxx

0000h

000q quuu(3)

PC + 1

uuuq quuu(3)

FSR

84h

xxxx xxxx

uuuu uuuu

uuuu uuuu

TRISA

85h

---1 1111

---1 1111

---u uuuu

TRISB

86h

1111 1111

1111 1111

uuuu uuuu

EECON1

88h

---0 x000

---0 q000

---0 uuuu

EECON2

89h

---- ----

---- ----

---- ----

PCLATH

INTCON

8Ah

---0 0000

8Bh

0000 000x

---0 0000

0000 000u

---u uuuu

uuuu uuuu(1)

Legend: u = unchanged, x = unknown, - = unimplemented bit read as '0',

q = value depends on condition.

Note 1: One or more bits in INTCON 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: Table 8-3 lists the reset value for each specific condition.

ï£ 1996-2013 Microchip Technology Inc.

DS30430D-page 43

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