CHAPTER 2 CPU
2.3
Memory Map
The memory map of the MB90360 Series is shown in Figure 2.3-1 .
Memory Map
The ROM data in the high-order portion of FF-bank can be seen as an image in the higher 00-bank in order
to support the small model C compiler. Since the low-order 16 bits are identical, this part of the ROM data
can be referred without using the far specification in the pointer declaration.
For example, when 00C000
ROM area in the FF bank exceeds 32K bytes, its entire image cannot be mirrored in the 00 bank.
The image between FF8000
FF7FFF
H
32
is accessed, the contents of ROM at FFC000
H
and FFFFFF
H
is only visible in bank FF.
Figure 2.3-1 Memory Map
MB90V340A-101/102/103/104
FFFFFF
H
ROM (FF bank)
FF0000
H
FEFFFF
H
ROM (FE bank)
FE0000
H
FDFFFF
H
ROM (FD bank)
FD0000
H
FCFFFF
H
ROM (FC bank)
FC0000
H
FBFFFF
H
ROM (FB bank)
FB0000
H
FAFFFF
H
ROM (FA bank)
FA0000
H
F9FFFF
H
ROM (F9 bank)
F90000
H
F8FFFF
H
ROM (F8 bank)
F80000
H
00FFFF
H
ROM
(image of FF bank)
008000
H
007FFF
H
Peripheral
007900
H
0078FF
H
RAM 30KB
000100
H
0000EF
H
Peripheral
000000
H
Access prohibited
is visible in bank 00, whereas the data between FF0000
H
MB90F362/T(S)
MB90362/T(S)
MB90F367/T(S)
MB90367/T(S)
FFFFFF
H
ROM (FF bank)
FF0000
H
FEFFFF
H
010000
H
00FFFF
H
ROM
(image of FF bank)
008000
H
007FFF
H
Peripheral
007900
H
000CFF
H
RAM 3KB
000100
H
0000FF
H
0000F0
H
0000EF
H
Peripheral
000000
H
are read. However, since the
H
H
and
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