Fujitsu MB90390 Series Hardware Manual page 714

APPENDIX
■ Data Polling
t
CH
CE
OE
WE
DQ7
DQ6 to DQ0
Note:
DQ7 is valid data (The device terminates automatic operation).
■ Toggle Bit
CE
WE
t
OES
OE
Data (DQ7 to DQ0)DQ6 = Toggle
686
Figure C-5 Timing Diagram for Data Polling
t
OE
t
OEH
t
CE
t or
WHWH1
t
WHWH2
Figure C-6 Timing Diagram for Toggle Bit
t
OE
H
*
DQ7 = Valid data
DQ7
DQ6toDQ0
DQ6 to DQ0 = Invalid
= Valid data
t
OE
*
DQ6 = Toggle
DQ6 = Stop toggling
t
OE
t
DF
t
OH
High
impedance
DQ7 to
DQ0=Valid