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18F452 Datasheet(PDF) 45 Page - Microchip Technology

Part # 18F452
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

18F452 Datasheet(HTML) 45 Page - Microchip Technology

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 2002 Microchip Technology Inc.
DS39564B-page 43
PIC18FXX2
FIGURE 4-6:
DATA MEMORY MAP FOR PIC18F242/442
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 is used to specify the
RAM location that the
instruction uses.
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 3
to
200h
Unused
Read ’00h’
= 1110
= 0011
(SFRs)
GPR
2FFh
300h
FFh
00h
Bank 2
= 0010



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