Fujitsu MB90895 Series Hardware Manual page 591

I Memory Space when ROM Mirroring Function Enabled/Disabled
Figure 18.1-3 shows the availability of access to memory space when the ROM mirroring function is
enabled or disabled
Figure 18.1-3 Memory Space when ROM Mirroring Function Enabled/Disabled (in Single Chip Mode)
000000
H
0000C0
H
000100
H
Address #1
003900
H
004000
H
010000
H
FE0000
H
FF0000
H
FFE000
H
FFFFFF
H
*: In MB90F897/S, When the area of FE0000
FF0000
I List of Registers and Reset Values of ROM Mirroring Function Select Module
Figure 18.1-4 List of Registers and Reset Values of ROM Mirroring Function Select Module
ROM mirroring function select register (ROMM
Undefined
When ROM mirroring
function is enabled
Peripheral
RAM area
Register
Expanded I/O area
ROM area
(Image of FF Bank)
*
ROM area
ROM area
Products
MB90V495G
MB90F897/S
: internal access memory
: Access prohibited
to FFFFFF can be read.
H H
CHAPTER 18 ROM Mirroring Function Selection Module
When ROM mirroring
function is disabled
Hardwired
reset vectors
Address #1
001900
H
000900
H
to FEFFFF is read, data of
H H
15 14 13
bit
Peripheral
RAM area
Register
Expanded I/O area
*
ROM area
ROM area
12 11 10 9 8
1
573