PIC12F1822-ISLASHMF datasheet(21/398 Pages) MICROCHIP

21 / 398 page

 2010 Microchip Technology Inc.

Preliminary

DS41413A-page 21

PIC12F/LF1822/16F/LF1823

3.0

MEMORY ORGANIZATION

There

are

three

types

memory

PIC12F/LF1822/16F/LF1823 devices: Data Memory,

Program Memory and Data EEPROM Memory(1).

• Program Memory

• Data Memory

- Core Registers

- Special Function Registers

- General Purpose RAM

- Common RAM

- Device Memory Maps

- Special Function Registers Summary

• Data EEPROM memory(1)

The following features are associated with access and

control of program memory and data memory:

• PCL and PCLATH

•Stack

• Indirect Addressing

3.1

Program Memory Organization

The enhanced mid-range core has a 15-bit program

counter capable of addressing a 32K x 14 program

memory space. Table 3-1 shows the memory sizes

implemented

for

the

PIC12F/LF1822/16F/LF1823

family. Accessing a location above these boundaries will

cause a wrap-around within the implemented memory

space. The Reset vector is at 0000h and the interrupt

vector is at 0004h (see Figures 3-1 and ).

Note 1: The Data EEPROM Memory and the

method to access Flash memory through

the EECON registers is described in

Section 11.0 “Data EEPROM and Flash

Program Memory Control”.

TABLE 3-1:

DEVICE SIZES AND ADDRESSES

Device

Program Memory Space (Words)

Last Program Memory Address

PIC12F/LF1822/16F/LF1823

2,048

07FFh

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