PIC18F4550-IP Datasheet, PDF (68/438 Pages) Microchip Technology – 28/40/44-Pin, High-Performance, Enhanced Flash, USB Microcontrollers with nanoWatt Technology

PIC18F2455/2550/4455/4550
FIGURE 5-5:
BSR<3:0>
= 0000
= 0001
= 0010
= 0011
= 0100
= 0101
= 0110
= 0111
DATA MEMORY MAP
Data Memory Map
00h
Bank 0
FFh
00h
Bank 1
FFh
00h
Bank 2
FFh
00h
Bank 3
FFh
00h
Bank 4
FFh
00h
Bank 5
FFh
00h
Bank 6
FFh
00h
Bank 7
FFh
00h
Access RAM
GPR
GPR
GPR
GPR
GPR⁽¹⁾
GPR⁽¹⁾
GPR⁽¹⁾
GPR⁽¹⁾
000h
05Fh
060h
0FFh
100h
1FFh
200h
2FFh
300h
3FFh
400h
4FFh
500h
5FFh
600h
6FFh
700h
7FFh
800h
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 remaining 160 bytes are
Special Function Registers
(from Bank 15).
When a = 1:
The BSR specifies the bank
used by the instruction.
Access Bank
00h
Access RAM Low
5Fh
Access RAM High ^60h
(SFRs)
FFh
= 1000
= 1110
Bank 8
to
Bank 14
Unused
Read as 00h
= 1111
FFh
00h
Bank 15
FFh
Unused
SFR
EFFh
F00h
F5Fh
F60h
FFFh
Note 1: These banks also serve as RAM buffer for USB operation. See Section 5.3.1 “USB RAM” for more
information.
DS39632E-page 66
© 2009 Microchip Technology Inc.