Fujitsu MB90480 Series Hardware Manual page 195

❍ Multiplex mode
Figure 7.5-6 Timing chart of ready function (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
P56/RDY
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
Even-numbered
address word read
Read address
(Port data)
(Port data)
Read address
Read address
Introduction
of RDY pin
Even-numbered
address word read
Read address
(Port data)
(Port data)
Write address
Write address
Write data
CHAPTER 7 MODE SETTING
Even-numbered
address word write
Write address
Write address
Write address
Read data
Even-numbered
address word write
Write address
Read address
Read address
Cycles extended
by auto-ready
Write data
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