Datasheet

PIC18F2220/2320/4220/4320
DS39599G-page 60 © 2007 Microchip Technology Inc.
FIGURE 5-6: DATA MEMORY MAP FOR PIC18F2X20/4X20 DEVICES
Bank 0
Bank 1
Bank 14
Bank 15
Data Memory Map
BSR<3:0>
= 0000
= 0001
= 1111
080h
07Fh
F80h
FFFh
00h
7Fh
80h
FFh
Access Bank
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.
F7Fh
F00h
EFFh
1FFh
100h
0FFh
000h
Access RAM
FFh
00h
FFh
00h
FFh
00h
GPR
GPR
SFR
Unused
Access RAM High
Access RAM Low
Bank 2
to
200h
Unused
Read ‘00h’
= 1110
= 0010
(SFRs)