Toggle Bit - Fujitsu F2MCTM-16LX Hardware Manual

APPENDIX
Data Polling
t
CH
CE
OE
WE
DQ7
to
DQ6 DQ0
Note:
DQ7 is valid data (The device terminates automatic operation).

Toggle Bit

CE
WE
t
OES
OE
Data (DQ7 to DQ0)
Note:
DQ6 stops toggling (The device terminates automatic operation).
640
Figure C-5 Timing Diagram for Data Polling
t
OE
t
OEH
t
CE
t or t
WHWH1 WHWH2
Figure C-6 Timing Diagram for Toggle Bit
t
OEH
DQ6 = Toggle
DQ7 = valid data
DQ7
DQ6 to DQ0 flag output
t
OE
DQ6 = Stop toggling
DQ6 = Toggle
t
OE
t
DF
t
OH
High-Z
DQ6 to DQ0 =
valid data
DQ7 to DQ0 =
valid