PIC18FXX8 Datasheet, PDF (47/402 Pages) Microchip Technology – 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

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.
 2004 Microchip Technology Inc.
DS41159D-page 45