SCE5780 datasheet(12/15 Pages) OSRAM

12 / 15 page

SCE5780

2006-01-23

ized, anti-reflective, band-pass filters. The circular polarizing fur-

ther enhances contrast by reducing the light that travels through

the filter and reflects back off the display to less than 1.0%.

Several filter manufacturers supply quality filter materials. Some of

them are: Panelgraphic Corporation, W. Caldwell, NJ; SGL Homa-

lite, Wilmington, DE; 3M Company, Visual Products Division, St.

Paul, MN; Polaroid Corporation, St. Paul, MN; Polaroid Corpora-

tion, Polarizer Division, Cambridge, MA; Marks Polarized Corpora-

tion, Deer Park, NY, Hoya Optics, Inc., Fremont, CA.

One last note on mounting filters: recessing displays and bezel

assemblies is an inexpensive way to provide a shading effect in

overhead lighting situations. Several Bezel manufacturers are:

R.M.F. Products, Batavia, IL; Nobex Components, Griffith Plastic

Corp., Burlingame, CA; Photo Chemical Products of California,

Santa Monica, CA; I.E.E.-Atlas, Van Nuys, CA.

Microprocessor Interface

The microprocessor interface is through the serial port, SPI port or

one out of eight data bits on the eight bit parallel port and also con-

trol lines SDCLK and LOAD.

Power Up Sequence

Upon power up display will come on at random. Thus the display

should be reset at power-up. The reset will set the Address Regis-

ter to Digit 0, User RAM is set to 0 (display blank) the Control Word

is set to 0 (100% brightness) and the internal counters are reset.

Loading Data into the Display

Use following procedure to load data into the display:

Power up the display.

Bring RST low (600 ns duration minimum) to clear the Multi-

plex Counter, Address Register, Control Word Register, User

Ram and Data Register. The display will be blank. Display

brightness is set to 100%.

If a different brightness is desired, load the proper brightness

opcode into the Control Word Register.

Load the Digit Address into the display.

Load display row and column data for the selected digit.

Repeat steps 4 and 5 for all digits.

Data Contents for the Word „ABCDEFGH“

Step

D7 D6 D5

Function

CLEAR

100% BRIGHT-

NESS

DIGIT D0 SELECT

ROW 0 (A)

ROW 1 (A)

ROW 2 (A)

ROW 3 (A)

ROW 4 (A)

ROW 5 (A)

ROW 6 (A)

DIGIT D1 SELECT

ROW 0 (B)

ROW 1 (B)

ROW 2 (B)

ROW 3 (B)

ROW 4 (B)

ROW 5 (B)

ROW 6 (B)

DIGIT D2 SELECT

ROW 0 (C)

ROW 1 (C)

ROW 2 (C)

ROW 3 (C)

ROW 4 (C)

ROW 5 (C)

ROW 6 (C)

DIGIT D3 SELECT

ROW 0 (D)

ROW 1 (D)

ROW 2 (D)

ROW 3 (D)

ROW 4 (D)

ROW 5 (D)

ROW 6 (D)

DIGIT D4 SELECT

ROW 0 (E)

ROW 1 (E)

ROW 2 (E)

ROW 3 (E)

ROW 4 (E)

ROW 5 (E)

ROW 6 (E)

101

000

DIGIT D5 SELECT

ROW 0 (F)

ROW 1 (F)

ROW 2 (F)

ROW 3 (F)

ROW 4 (F)

ROW 5 (F)

ROW 6 (F)

DIGIT D6 SELECT

ROW 0 (G)

ROW 1 (G)

ROW 2 (G)

ROW 3 (G)

ROW 4 (G)

ROW 5 (G)

ROW 6 (G)

DIGIT D7 SELECT

ROW 0 (H)

ROW 1 (H)

ROW 2 (H)

ROW 3 (H)

ROW 4 (H)

ROW 5 (H)

ROW 6 (H)

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