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Data polling, Toggle bit – FUJITSU F2MCTM-16LX User Manual

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APPENDIX

Data Polling

Figure C-5 Timing Diagram for Data Polling

Note:

DQ7 is valid data (The device terminates automatic operation).

Toggle Bit

Figure C-6 Timing Diagram for Toggle Bit

Note:

DQ6 stops toggling (The device terminates automatic operation).

CE

OE

WE

DQ7

DQ7

DQ6

to

DQ0

t

OE

t

CE

t

CH

t

OEH

t

OH

t

DF

t

OE

High-Z

DQ7 = valid data

DQ6 to DQ0 =
valid data

DQ6 to DQ0 flag output

t

WHWH1

or t

WHWH2

CE

WE

OE

t

OES

t

OE

t

OEH

DQ6 = Stop toggling

Data (DQ7 to DQ0)

DQ7 to DQ0 =
valid

DQ6 = Toggle

DQ6 = Toggle