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CHAPTER 23 ROM MIRRORING MODULE
■ Memory Space when ROM Mirroring Function Enabled/Disabled
Figure 23.1-3 shows the availability of access to memory space when the ROM mirroring function is
enabled or disabled.
Figure 23.1-3 Memory Space when ROM Mirroring Function Enabled/Disabled
■ List of Registers and Reset Values of ROM Mirroring Function Select Module
Figure 23.1-4 List of Registers and Reset Values of ROM Mirroring Function Select Module
RAM
FFFFFF
H
010000
H
008000
H
007900
H
000100
H
0000F0
H
000000
H
Single chip
ROM area
ROM area
(image of FF
bank)
Extended I/O area
General-
purpose
register
I/O
: Internal
: Access disabled
Product type Address #1 Address #2
MB90F362/T(S), MB90362/T(S),
MB90F367/T(S), MB90367/T(S)
FF0000
H
000D00
H
MB90V340A-101/102/103/104 F80000
H
007900
H
Address #1
Address #2
ROM mirror function select register (ROMM)
14 13 12 11 10 9
1
15 8
bit
: Undefined