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PIC18F242 Datasheet(PDF) 46 Page - Microchip Technology

Part # PIC18F242
Description  High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D
PDF  332 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F242 Datasheet(HTML) 46 Page - Microchip Technology

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PIC18FXX2
DS39564C-page 44
© 2006 Microchip Technology Inc.
FIGURE 4-7:
DATA MEMORY MAP FOR PIC18F252/452
Bank 0
Bank 1
Bank 14
Bank 15
Data Memory Map
BSR<3:0>
= 0000
= 0001
= 1110
= 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 is used to specify the
RAM location that the
instruction uses.
Bank 4
Bank 3
Bank 2
F7Fh
F00h
EFFh
3FFh
300h
2FFh
200h
1FFh
100h
0FFh
000h
= 0110
= 0101
= 0011
= 0010
Access RAM
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
FFh
00h
GPR
GPR
GPR
GPR
SFR
Unused
Access RAM high
Access RAM low
Bank 5
GPR
GPR
Bank 6
to
4FFh
400h
5FFh
500h
600h
Unused
Read ’00h’
= 0100
(SFR’s)



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