PD2436(2006) 查看數據表（PDF） - OSRAM GmbH

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PD2436
(Rev.:2006)

4-Character 5 x 7 Dot Matrix Alphanumeric Programmable DisplayTM with Built-in CMOS Control Functions

OSRAM GmbH 

PD243X, PD353X, PD443X

How to Load Information Into the Display

Information loaded into the display can be either ASCII data or

Control Word data. The following procedure (see also Typical

Loading Sequence) will demonstrate a typical loading sequence

and the resulting visual display. The word STOP is used in all of

the following examples.

Set Brightness

Step 1

Set the brightness level of the entire display to

your preference (example: 100%)

Load Four Characters

Step 2

Load an “S” in the left hand digit.

Step 3

Load a “T” in the next digit.

Step 4

Load an “O” in the next digit.

Step 5

Load a “P” in the right hand digit.

If you loaded the information correctly, the display

now should show the word “STOP.”

Blink a Single Character

Step 6

Into the digit, second from the right, load the hex

code “CF,” which is the code for an “O” with the

D7 bit added as a control bit.

Note:

The “O” is the only digit which has the control bit

(D7) added to normal ASCII data.

Step 7

Load enable blinking character into the control

word register. The display should show “STOP”

with a flashing “O”.

Step 8

Step 9

Step 10

Add Another Blinking Character

Into the left hand digit, load the hex code “D3”

which gives an “S” with the D7 bit added as a

control bit. The display should show “STOP”

with flashing “O” and a flashing “S.”

Alternate Character/Cursor Enable

Load enable alternate character/cursor into the

control word register. The display now should

show “STOP” with the “O” and the “S” alternating

between the letter and cursor (all dots lit).

Initiate Four Character Blinking

(Regardless of Control Bit setting)

Load enable display blinking. The display now

should show the entire word “STOP” blinking.

Typical Loading Sequence

CEO CE1 RD WR A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 Display

1. L

H

H

L

L

X

X

0

0

0

0

0

0

1

1

2. L

H

H

L

H

H

H

0

1

0

1

0

0

1

1

S

3. L

H

H

L

H

H

L

0

1

0

1

0

1

0

0

ST

4. L

H

H

L

H

L

H

0

1

0

0

1

1

1

1

STO

5. L

H

H

L

H

L

L

0

1

0

1

0

0

0

0

STOP

6. L

H

H

L

H

L

H

1

1

0

0

1

1

1

1

STOP

7. L

H

H

L

L

X

X

0

0

0

1

0

1

1

1

STO*P

8. L

H

H

L

H

H

H

1

1

0

1

0

0

1

1

S*TO*P

9. L

H

H

L

L

X

X

0

0

0

1

1

1

1

1

S†TO†P

10. L

H

H

L

L

X

X

0

0

1

0

0

0

1

1

S*T*O*P*

* Blinking character

† Character alternating with cursor (all dots lit)

2006-01-23

11

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