PIC18F6390 Datasheet, PDF(61/412 Page) Microchip Technology – 64/80-Pin Flash Microcontrollers with LCD Driver and nanoWatt Technology

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PIC18F6390 Datasheet, PDF (61/412 Pages) Microchip Technology – 64/80-Pin Flash Microcontrollers with LCD Driver and nanoWatt Technology

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PIC18F6390/6490/8390/8490

TABLE 4-4: INITIALIZATION CONDITIONS FOR ALL REGISTERS

Register

Applicable

Devices

Power-on Reset,

Brown-out Reset

MCLR Resets

WDT Reset

RESET Instruction

Stack Resets

Wake-up via WDT

or Interrupt

TOSU

TOSH

TOSL

STKPTR

6X90

6X90

6X90

6X90

8X90

8X90

8X90

8X90

---0 0000

0000 0000

0000 0000

uu-0 0000

---0 0000

0000 0000

0000 0000

00-0 0000

---0 uuuu(3)

uuuu uuuu(3)

uuuu uuuu(3)

uu-u uuuu(3)

PCLATU

6X90 8X90

---0 0000

---0 0000

---u uuuu

PCLATH

PCL

6X90 8X90

6X90 8X90

0000 0000

0000 0000

0000 0000

0000 0000

uuuu uuuu

PC + 2(2)

TBLPTRU

6X90 8X90

--00 0000

--00 0000

--uu uuuu

TBLPTRH

6X90 8X90

0000 0000

0000 0000

uuuu uuuu

TBLPTRL

6X90 8X90

0000 0000

0000 0000

uuuu uuuu

TABLAT

6X90 8X90

0000 0000

0000 0000

uuuu uuuu

PRODH

6X90 8X90

xxxx xxxx

uuuu uuuu

uuuu uuuu

PRODL

INTCON

INTCON2

INTCON3

6X90 8X90

6X90 8X90

6X90 8X90

6X90 8X90

xxxx xxxx

0000 000x

1111 1111

1100 0000

uuuu uuuu

0000 000u

1111 1111

1100 0000

uuuu uuuu

uuuu uuuu(1)

uuuu uuuu(1)

uuuu uuuu(1)

INDF0

6X90 8X90

N/A

N/A

N/A

POSTINC0

6X90 8X90

N/A

N/A

N/A

POSTDEC0

6X90 8X90

N/A

N/A

N/A

PREINC0

6X90 8X90

N/A

N/A

N/A

PLUSW0

6X90 8X90

N/A

N/A

N/A

FSR0H

6X90 8X90

---- xxxx

---- uuuu

---- uuuu

FSR0L

6X90 8X90

xxxx xxxx

uuuu uuuu

uuuu uuuu

WREG

6X90 8X90

xxxx xxxx

uuuu uuuu

uuuu uuuu

INDF1

6X90 8X90

N/A

N/A

N/A

POSTINC1

6X90 8X90

N/A

N/A

N/A

POSTDEC1

6X90 8X90

N/A

N/A

N/A

PREINC1

6X90 8X90

N/A

N/A

N/A

PLUSW1

6X90 8X90

N/A

N/A

N/A

Legend: u = unchanged, x = unknown, - = unimplemented bit, read as â0â, q = value depends on condition.

Shaded cells indicate conditions do not apply for the designated device.

Note 1: One or more bits in the INTCONx or PIRx registers will be affected (to cause wake-up).

2: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the PC is loaded with the interrupt

vector (0008h or 0018h).

3: When the wake-up is due to an interrupt and the GIEL or GIEH bit is set, the TOSU, TOSH and TOSL are

updated with the current value of the PC. The STKPTR is modified to point to the next location in the

hardware stack.

4: See Table 4-3 for Reset value for specific condition.

5: Bits 6 and 7 of PORTA, LATA and TRISA are enabled depending on the oscillator mode selected. When

not enabled as PORTA pins, they are disabled and read â0â.

ï£© 2004 Microchip Technology Inc.

Preliminary

DS39629B-page 59

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