PIC18F4321 Datasheet, PDF (62/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F4321 FAMILY
FIGURE 5-5:
DATA MEMORY MAP FOR PIC18F4321 FAMILY DEVICES
BSR<3:0>
= 0000
= 0001
Data Memory Map
00h
Bank 0
FFh
Bank 1
Access RAM
GPR
GPR
000h
07Fh
080h
0FFh
100h
1FFh
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.
= 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
DS39689E-page 60
Preliminary
© 2007 Microchip Technology Inc.