PIC18C252 Datasheet

  • PIC18C252

  • High Performance Microcontrollers with 10-bit A/D

  • 2903.99KB

  • 305页

  • Microchip

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PIC18CXX2
FIGURE 4-7:
BSR<3:0>
= 0000b
00h
Bank 0
FFh
00h
Bank 1
FFh
00h
Bank 2
FFh
00h
Bank 3
FFh
= 0100b
Bank 4
00h
Bank 5
FFh
GPR
5FFh
600h
GPR
4FFh
500h
GPR
3FFh
400h
Access Bank
00h
7Fh
80h
Access RAM high FFh
(SFR鈥檚)
Access RAM low
DATA MEMORY MAP FOR PIC18C252/452
Data Memory Map
Access RAM
GPR
GPR
1FFh
200h
GPR
2FFh
300h
000h
07Fh
080h
0FFh
100h
= 0001b
= 0010b
= 0011b
= 0101b
= 0110b
= 1110b
Bank 6
to
Bank 14
Unused
Read 鈥?0h鈥?/div>
= 1111b
00h
Bank 15
FFh
Unused
SFR
EFFh
F00h
F7Fh
F80h
FFFh
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.
DS39026B-page 42
Preliminary
7/99 Microchip Technology Inc.

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