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Figure 17, Atmega162/v – Rainbow Electronics ATmega162V User Manual

Page 31

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31

ATmega162/V

2513E–AVR–09/03

When the device is set in ATmega161 compatibility mode, the internal address space is
1,120 bytes. This implies that the first 1,120 bytes of the external memory can be
accessed at addresses 0x8000 to 0x845F. To the Application software, the external 32
KB memory will appear as one linear 32 KB address space from 0x0460 to 0x845F.

Figure 17. Address Map with 32 KB External Memory

0x0000

0x04FF

0xFFFF

0x0500

0x7FFF
0x8000

0x84FF
0x8500

0x0000

0x04FF
0x0500

0x7FFF

Memory Configuration A

Memory Configuration B

Internal Memory

(Unused)

AVR Memory Map

External 32K SRAM

External

Memory

0x0000

0x045F

0xFFFF

0x0460

0x7FFF
0x8000

0x845F
0x8460

0x0000

0x045F
0x0460

0x7FFF

Internal Memory

(Unused)

AVR Memory Map

External 32K SRAM

External

Memory