PIC18F2220_07 Datasheet, PDF(48/386 Page) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

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PIC18F2220_07 Datasheet, PDF (48/386 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

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PIC18F2220/2320/4220/4320

TABLE 4-3: 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

2220 2320 4220 4320

2220 2320 4220 4320

2220 2320 4220 4320

2220 2320 4220 4320

---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 2220 2320 4220 4320 ---0 0000

---0 0000

---u uuuu

PCLATH

PCL

2220 2320 4220 4320

2220 2320 4220 4320

0000 0000

0000 0000

0000 0000

0000 0000

uuuu uuuu

PC + 2(2)

TBLPTRU 2220 2320 4220 4320 --00 0000

--00 0000

--uu uuuu

TBLPTRH 2220 2320 4220 4320 0000 0000

0000 0000

uuuu uuuu

TBLPTRL 2220 2320 4220 4320 0000 0000

0000 0000

uuuu uuuu

TABLAT

2220 2320 4220 4320

0000 0000

0000 0000

uuuu uuuu

PRODH

2220 2320 4220 4320 xxxx xxxx

uuuu uuuu

uuuu uuuu

PRODL

INTCON

INTCON2

INTCON3

2220 2320 4220 4320

2220 2320 4220 4320

2220 2320 4220 4320

2220 2320 4220 4320

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

2220 2320 4220 4320

N/A

N/A

N/A

POSTINC0 2220 2320 4220 4320

N/A

N/A

N/A

POSTDEC0 2220 2320 4220 4320

N/A

N/A

N/A

PREINC0 2220 2320 4220 4320

N/A

N/A

N/A

PLUSW0 2220 2320 4220 4320

N/A

N/A

N/A

FSR0H

2220 2320 4220 4320 ---- xxxx

---- uuuu

---- uuuu

FSR0L

2220 2320 4220 4320 xxxx xxxx

uuuu uuuu

uuuu uuuu

WREG

2220 2320 4220 4320 xxxx xxxx

uuuu uuuu

uuuu uuuu

INDF1

2220 2320 4220 4320

N/A

N/A

N/A

POSTINC1 2220 2320 4220 4320

N/A

N/A

N/A

POSTDEC1 2220 2320 4220 4320

N/A

N/A

N/A

PREINC1 2220 2320 4220 4320

N/A

N/A

N/A

PLUSW1 2220 2320 4220 4320

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 4-2 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.

DS39599F-page 46

Â© 2007 Microchip Technology Inc.

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