PDSP2110 Datasheet, PDF (11/14 Pages) OSRAM GmbH – Lead (Pb) Free Product - RoHS Compliant

PDSP2110, PDSP2111, PDSP2112, PDSP2113, PDSP2114
Control Word Format
Display Brightness
The display can be programmed to vary between blank, 13%, 20%, 27%, 40%, 53%, 80% and full brightness.
Bits D0, D1 and D2 control the display brightness.
CE WR FL A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
0
0
10
X
X
X0
0
X
X
X
0
0
0
0
0
10
X
X
X0
0
X
X
X
0
0
1
0
0
10
X
X
X0
0
X
X
X
0
1
0
0
0
10
X
X
X0
0
X
X
X
0
1
1
0
0
10
X
X
X0
0
X
X
X
1
0
0
0
0
10
X
X
X0
0
X
X
X
1
0
1
0
0
10
X
X
X0
0
X
X
X
1
1
0
0
0
10
X
X
X0
0
X
X
X
1
1
1
X=Don’t Care
Display Brightness
100% Brightness
80% Brightness
53% Brightness
40% Brightness
27% Brightness
20% Brightness
13% Brightness
Blank Display
Flash RAM Function
Character Flash is controlled by FL pin, bit D0 and control word bit D3. Combination of FL being low, proper digit address and D0 being
high will write a flash bit into the Flash RAM Register. In the control word mode when D3 is brought high, the above mentioned character
will flash.
Setting the Flash Bit
CE WR FL A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 Operation
0
0
0X
A
A
AX
XX
X
X
X
X
0 Flash RAM Disabled
0
0
0X
A
A
AX
XX
X
X
X
X
1 Flash RAM Enabled
X=Don’t Care A=Selected Address
Character Flash Control Word
CE WR FL A3 A2 A1
0 010
X
X
0 010
X
X
X=Don’t Care B=Selected Brightness
A0 D7
X0
X0
D6 D5 D4 D3 D2 D1 D0 Operation
0
X
0
0
B
B B Disable Flashing Character
0
X
0
1
B
B B Enable Flashing Character
Display Blinking
Blinking Function is independent of Flash function. When D4 is held high, entire display blinks at 2.0 Hz.
CE WR FL A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
0 010
X
X
X0
0
X
0
0
B
BB
0 010
X
X
X0
0
X
1
0
B
BB
X=Don’t Care B=Selected Brightness
Operation
Display Blinking Disabled
Display Blinking Enabled
Lamp Test
Bit D6 when brought high will cause all the LEDs in all eight digits to light up at 53% brightness.
Selecting or de-selecting Lamp Test bit has no effect on the display memory.
CE WR FL A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 Operation
0
0
10
X
X
X0
0
X
0
X
X
X
X Lamp Test Disabled
0
0
10
X
X
X0
1
X
0
0
X
X
X Lamp Test Enabled
X=Don’t Care
2006-01-23
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