PIC18F2525_08 Datasheet, PDF(51/412 Page) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

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PIC18F2525_08 Datasheet, PDF (51/412 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

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PIC18F2525/2620/4525/4620

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

2525 2620 4525 4620

2525 2620 4525 4620

2525 2620 4525 4620

2525 2620 4525 4620

---0 0000

0000 0000

0000 0000

00-0 0000

---0 0000

0000 0000

0000 0000

uu-0 0000

---0 uuuu(3)

uuuu uuuu(3)

uuuu uuuu(3)

uu-u uuuu(3)

PCLATU

2525 2620 4525 4620

---0 0000

---0 0000

---u uuuu

PCLATH

PCL

2525 2620 4525 4620

2525 2620 4525 4620

0000 0000

0000 0000

0000 0000

0000 0000

uuuu uuuu

PC + 2(2)

TBLPTRU 2525 2620 4525 4620

--00 0000

--00 0000

--uu uuuu

TBLPTRH 2525 2620 4525 4620

0000 0000

0000 0000

uuuu uuuu

TBLPTRL

2525 2620 4525 4620

0000 0000

0000 0000

uuuu uuuu

TABLAT

2525 2620 4525 4620

0000 0000

0000 0000

uuuu uuuu

PRODH

2525 2620 4525 4620

xxxx xxxx

uuuu uuuu

uuuu uuuu

PRODL

INTCON

INTCON2

INTCON3

2525 2620 4525 4620

2525 2620 4525 4620

2525 2620 4525 4620

2525 2620 4525 4620

xxxx xxxx

0000 000x

1111 -1-1

11-0 0-00

uuuu uuuu

0000 000u

1111 -1-1

11-0 0-00

uuuu uuuu

uuuu uuuu(1)

uuuu -u-u(1)

uu-u u-uu(1)

INDF0

2525 2620 4525 4620

N/A

N/A

N/A

POSTINC0 2525 2620 4525 4620

N/A

N/A

N/A

POSTDEC0 2525 2620 4525 4620

N/A

N/A

N/A

PREINC0

2525 2620 4525 4620

N/A

N/A

N/A

PLUSW0

2525 2620 4525 4620

N/A

N/A

N/A

FSR0H

2525 2620 4525 4620

---- 0000

---- 0000

---- uuuu

FSR0L

2525 2620 4525 4620

xxxx xxxx

uuuu uuuu

uuuu uuuu

WREG

2525 2620 4525 4620

xxxx xxxx

uuuu uuuu

uuuu uuuu

INDF1

2525 2620 4525 4620

N/A

N/A

N/A

POSTINC1 2525 2620 4525 4620

N/A

N/A

N/A

POSTDEC1 2525 2620 4525 4620

N/A

N/A

N/A

PREINC1

2525 2620 4525 4620

N/A

N/A

N/A

PLUSW1

2525 2620 4525 4620

N/A

N/A

N/A

Legend:

Note 1:

2:

3:

4:

5:

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.

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

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).

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.

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

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.

Â© 2008 Microchip Technology Inc.

DS39626E-page 49

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