PIC16F882-I datasheet(23/328 Pages) MICROCHIP

23 / 328 page

DS41291F-page 21

PIC16F882/883/884/886/887

2.0

MEMORY ORGANIZATION

2.1

Program Memory Organization

The PIC16F882/883/884/886/887 has a 13-bit program

counter capable of addressing a 2K x 14 (0000h-07FFh)

for the PIC16F882, 4K x 14 (0000h-0FFFh) for the

PIC16F883/PIC16F884, and 8K x 14 (0000h-1FFFh) for

the PIC16F886/PIC16F887 program memory space.

Accessing a location above these boundaries will cause

a wrap-around within the first 8K x 14 space. The Reset

vector is at 0000h and the interrupt vector is at 0004h

(see Figures 2-2 and 2-3).

FIGURE 2-1:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC16F882

FIGURE 2-2:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC16F883/PIC16F884

FIGURE 2-3:

PROGRAM MEMORY MAP

AND STACK FOR THE

PIC16F886/PIC16F887

PC<12:0>

0000h

0004h

0005h

07FFh

Stack Level 1

Stack Level 8

Reset Vector

Interrupt Vector

CALL, RETURN

RETFIE, RETLW

Stack Level 2

Page 0

On-Chip

Program

Memory

PC<12:0>

0000h

0004h

0005h

07FFh

0800h

Stack Level 1

Stack Level 8

Reset Vector

Interrupt Vector

CALL, RETURN

RETFIE, RETLW

Stack Level 2

Page 0

Page 1

0FFFh

On-Chip

Program

Memory

PC<12:0>

0000h

0004h

0005h

07FFh

0800h

17FFh

Stack Level 1

Stack Level 8

Reset Vector

Interrupt Vector

CALL, RETURN

RETFIE, RETLW

Stack Level 2

Page 0

Page 1

Page 2

Page 3

0FFFh

1000h

1FFFh

1800h

On-Chip

Program

Memory

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