PIC16F570 datasheet(12/129 Pages) MICROCHIP

12 / 129 page

PIC16F570

DS40001684E-page 12

 2013-2014 Microchip Technology Inc.

4.0

MEMORY ORGANIZATION

The PIC16F570 memories are organized into program

memory and data memory (SRAM).The self-writable

portion of the program memory called self-writable

Flash data memory is located at addresses 800h-83Fh.

All program mode commands that work on the normal

Flash memory, work on the Flash data memory. This

includes bulk erase, row/column/cycling toggles, Load

and Read data commands (Refer to Section 5.0 “Self-

Writable Flash Data Memory Control” for more

details). For devices with more than 512 bytes of

program memory, a paging scheme is used. Program

memory pages are accessed using one STATUS

scheme is used. Data memory banks are accessed

directly using the Bank Select Register (BSR).

4.1

Program Memory Organization for

PIC16F570

The PIC16F570 device has an 11-bit Program Counter

(PC) capable of addressing a 2K x 12 program memory

space. Program memory is partitioned into user memory,

data memory and configuration memory spaces.

The user memory space is the on-chip user program

memory. As shown in Figure 4-1, it extends from 0x000

to 0x7FF and partitions into pages, including an

Interrupt vector at address 0x004 and a Reset vector at

address 0x7FF.

The Configuration memory space extends from 0x840

to 0xFFF. Locations from 0x848 through 0x8AF are

reserved. The user ID locations extend from 0x840

through 0x843. The Backup OSCCAL locations extend

from 0x844 through 0x847. The Configuration Word is

physically located at 0xFFF.

Refer

“PIC16F570

Memory

Programming

Specification” (DS41670) for more details.

FIGURE 4-1:

MEMORY MAP

000h

1FFh

Reset Vector

On-chip User

Program

Memory (Page 0)

200h

7FFh

7FEh

User ID Locations

Reserved

Configuration Word

800h

843h

844h

FFEh

FFFh

83Fh

840h

Unimplemented

On-chip User

Program

Memory (Page 1)

Self-writable

848h

8AFh

Backup OSCCAL

Locations

847h

8B0h

Flash Data Memory

On-chip User

Program

Memory (Page 2)

On-chip User

Program

Memory (Page 3)

3FFh

400h

5FFh

600h

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