PIC18F258T-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F258T-I/SP

28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

Microchip Technology 

FIGURE 4-5:

BSR<3:0>

= 0000

= 0001

= 0010

DATA MEMORY MAP FOR PIC18F248/448

Data Memory Map

00h

Bank 0

FFh

00h

Bank 1

FFh

00h

Bank 2

FFh

Access RAM

GPR

GPR

GPR

000h

05Fh

060h

0FFh

100h

1FFh

200h

300h

PIC18FXX8

= 0011

= 1110

Bank 3

to

Bank 14

Unused

Read ‘00h’

= 1111

00h

Bank 15

FFh

Unused

SFR

EFFh

F00h

F5Fh

F60h

FFFh

Access Bank

00h

Access Bank Low

(GPR)

5Fh

Access Bank High 60h

(SFR)

FFh

When a = 0,

the BSR is ignored and

the Access Bank is used.

The first 96 bytes are

general purpose RAM

(from Bank 0).

The next 160 bytes are

Special Function

Registers (from Bank 15).

When a = 1,

the BSR is used to specify

the RAM location that the

instruction uses.

© 2006 Microchip Technology Inc.

DS41159E-page 45

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