Silan
Semiconductors
(4) Display control command
MSB
10- -
LSB
b3 b2 b1 b0
SC16311
Don't care
Sets dimming quantity.
000: Sets pulse width to 1/16.
001: Sets pulse width to 2/16.
010: Sets pulse width to 4/16.
011: Sets pulse width to 10/16.
100: Sets pulse width to 11/16.
101: Sets pulse width to 12/16.
110: Sets pulse width to 13/16.
111: Sets pulse width to 14/16.
Turns on/off display.
0: Display off(key scan continues*)
1: Display on
On power application, the 1/16-pulse width is set and the display is turned off.
*: On power application, key scanning is stopped.
Key Scanning and Display Timing
TDISP 500 s
SEG Output DIG1 DIG2 DIG3 .........
G1
G2
1/16
TDISP
G3
key scan data
DIGn ... DIG1
Gn
1 frame = TDISP X (n + 1)
One cycle of key scanning consists of two frames, and data of 12 x 4 matrices is stored in RAM.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2001.11.8.
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