FUJITSU MB91460 SERIES FR60 - Manual (Page 568)

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Chapter 31 External Bus
4.Endian and Bus Access
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8-bit bus width
Figure 4-19 Relationship between the Internal Register and External Data Bus in the 8-bit Bus Width
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Examples of Connection with External Devices
The following shows examples of connecting the MB91460 series to external devices for each bus width.
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32-bit bus width
Figure 4-20 Example of Connecting the MB91460 Series to External Devices (32-Bit Bus Width)
D07
D15
D23
D31 D31
"00" "01"
AA
BB
CC
DD
CC DD
"10" "11"
AA BB
read/write
External bus Internal register
Output address low-order digits
D31 D08D07 D00 D16D15 D31 D00 D16D15 D24D23 D08D07 D24D23
This LSI
D31
|
D24 D23
|
D16 D15
|
D08 D07
|
D00
00 01 10 11 11 10 00 01
big endian area little endian area