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UPD784020 Datasheet, PDF (50/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER
mPD784020, 784021
10.2 MEMORY SPACE
The 1M-byte memory space is divided into eight spaces, each having a logical address. Each of these spaces
can be controlled using the programmable wait and pseudo-static RAM refresh functions.
Fig. 10-2 Memory Space
FFFFFH
80000H
7FFFFH
40000H
3FFFFH
20000H
1FFFFH
10000H
0FFFFH
0C000H
0BFFFH
08000H
07FFFH
04000H
03FFFH
00000H
512K bytes
256K bytes
128K bytes
64K bytes
16K bytes
16K bytes
16K bytes
16K bytes
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