FEDL9209-01

LAPIS Semiconductor

ML9209-xx

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7. “All display lights ON” and “All display lights OFF” commands

(Turns the entire display ON and OFF, respectively.)

All display lights ON is used primarily for display testing.

All display lights OFF is primarily used for display blink and to prevent false display upon power-on.

[Command format]

L

H

*

*

1

1

1

0

B0 B1 B2 B3 B4 B5 B6 B7

1st byte

LSB

MSB

: Select all display lights ON or OFF and specify

their operation.

L: All display lights OFF

H: All display lights ON

* : Don’t Care

[Data to be setup and display state of SEG and AD]

L

H

Display state of SEG and AD

0

0

Normal display

1

0

Sets all outputs to Low

* The state when power is turned on or when

RESET

signal is input

0

1

Sets all outputs to High

1

1

Sets all outputs to High

* Priority is given to the All display lights ON command.