Fujitsu MB90480 Series Hardware Manual page 191

❍ External data bus 8-bit mode (multiplex mode)
Figure 7.5-2 Access timing chart of external data bus 8-bit mode (multiplex mode)
P57/CLK
P53/WRH
P52/WRL
P51/RD
P50/ALE
A23 to 16
A15 to 08
A07 to 00
D15 to 08/
AD15 to 08
D07 to 00/
AD07 to 00
❍ External data bus 16-bit mode (non-multiplex mode)
Figure 7.5-3 Access timing chart of external data bus 16-bit mode (non-multiplex mode)
P57/CLK
P53/WRH
P52/WRL
P51/RD
P50/ALE
A23 to 16
A15 to 08
A07 to 00
D15 to 08/
AD15 to 08
D07 to 00/
AD07 to 00
Read
(Port data)
Read address
(Port data)
(Port data)
Read address
Read address
Read data
Even-numbered
address word read
Read address
Read address
Read address
Read data
CHAPTER 7 MODE SETTING
Write
Write address
Write address
Write address
Write data
Even-numbered
address word write
Write address
Write address
Write address
Write data
Read
Read address
Read address
Read address
Read address
Read address
Read address
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