Data Sheet S14074EJ1V0DS

7

µµµµPD16315

6. COMMANDS

Commands set the display mode and status of the FIP

The first 1 byte input to the

is set high while commands/data are transmitted, serial communication is initialized, and the commands/data being

transmitted are invalid (however, the commands/data previously transmitted remain valid).

(1) Display mode setting commands

These commands initialize the

µPD16315 and select the number of segments and the number of grids (1/4- to 1/12-

duty, 16 segments to 24 segments).

When these commands are executed, the display is forcibly turned OFF, and key scanning is also stopped. To resume

display, the display command “ON” must be executed. If the same mode is selected, however, nothing happens.

MSB

LSB

b2 b1 b0

00

−−

−

Don't care

Display mode settings

0000 : 4 digits 24 segments

0001 : 5 digits 23 segments

0010 : 6 digits 22 segments

0011 : 7 digits 21 segments

0101 : 9 digits 19 segments

0110 : 10 digits 18 segments

0111 : 11 digits 17 segments

: 12 digits 16segments

0100 : 8 digits 20segments

1xxx

Remark

Power ON application, the 12-digit, 16-segment mode is selected.