2006-01-23

12

PDSP2110, PDSP2111, PDSP2112, PDSP2113, PDSP2114

Control Word Format

Clear Function

Clear function will clear the display. The Flash RAM will be set to all zeros. An ASCII blank code (20H) will be written into the display

memory. The user must wait 3.0 ms or write a new control word to the display with control word bit D7 = 0 to disable clear before writing

any data to the display memory, otherwise all new data to the display memory will remain cleared. See Switching Specifications for clear

function timing.

CE

WR

FL

A3

A2

A1

A0

D7

D6

D5

D4

D3

D2

D1

D0

Operation

00

1

00

1

0X

X

X

0X

X

X

0

X

XXXX

X

X

1

X

XXXX

X

X

Clear Disabled

Clear User RAM,

Page RAM, Flash

RAM and Display

X=Don’t Care

IDCW5164

Enable

Blink

Lamp

Enable

Brightness Control

D7

D6

D5

D4

D3

D2

D1

D0

D1 D0 Brightness

100%

00

80%

01

1

53%

0

1

40%

1

Disable Flashing Character

Flash Enable

D3

0

Enable Flashing Character

1

Enable Blinking Display

Disable Blinking Display

Blinking Display

D4

1

0

Disable Lamp Test

Enable Lamp Test (all dots on at 53% brightness)

Lamp Test

Enable Clear (clear Data RAM, Page RAM, Flash RAM)

Disable Clear

0

1

Clear Enable

D7

Clear

Flash

Enable

D2

0

0

0

0

27%

0% Blank

11

1

1

1

0

10

1

0

1

20%

13%

0

0

1

D6

Test

Not Used