PIC12F1822 datasheet(13/410 Pages) MICROCHIP

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 2011-2012 Microchip Technology Inc.

DS41441C-page 13

PIC12(L)F1840

3.0

MEMORY ORGANIZATION

These devices contain the following types of memory:

• Program Memory

- Configuration Words

- Device ID

-User ID

- Flash Program Memory

• Data Memory

- Core Registers

- Special Function Registers

- General Purpose RAM

- Common RAM

• 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 PIC12(L)F1840 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 Figure 3-1).

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

PIC12(L)F1840

4, 096

0FFFh

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