FUJITSU MB91F109 FR30 - Manual (Page 170)

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CHAPTER 4 BUS INTERFACE
■ Example of Connection to External Devices
Figure 4.16-10 Example of Connection between MB91F109 and External Devices
MB91F109
W W
D31 R D23 R
0 1
D24 X D16 X
0 1 X
D15 D08D07 D00 D07 D00
16-bit device* 8-bit device*
* For the 16/8-bit device, the data bus on the MSB side of the MB91F109 is used.
("0"/"1" is the lower 1 bit of the address; the lower 1 bit of the address in "X" can be set to "0" or "1".)