PIC18F4220-I View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F4220-I

28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2220/2320/4220/4320

FIGURE 5-6:

BSR<3:0>

= 0000

= 0001

DATA MEMORY MAP FOR PIC18F2X20/4X20 DEVICES

Data Memory Map

00h

Bank 0

FFh

00h

Bank 1

FFh

Access RAM

GPR

GPR

000h

07Fh

080h

0FFh

100h

1FFh

200h

= 0010

= 1110

Bank 2

to

Bank 14

Unused

Read ‘00h’

Access Bank

00h

Access RAM Low

7Fh

Access RAM High 80h

(SFRs)

FFh

= 1111

00h

Bank 15

FFh

Unused

SFR

EFFh

F00h

F7Fh

F80h

FFFh

When a = 0:

The BSR is ignored and the

Access Bank is used.

The first 128 bytes are

general purpose RAM

(from Bank 0).

The second 128 bytes are

Special Function Registers

(from Bank 15).

When a = 1:

The BSR specifies the bank

used by the instruction.

DS39599C-page 60

 2003 Microchip Technology Inc.

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