PIC16F1847 datasheet(19/408 Pages) MICROCHIP

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Preliminary

DS41453B-page 19

PIC16(L)F1847

3.0

MEMORY ORGANIZATION

There are three types of memory in PIC16(L)F1847:

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 PIC16F/LF1847 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

PIC16(L)F1847

8,192

1FFFh

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