7

PD16312

SW Data

SW data is read with the read command, starting from the least significant bit. Bits 5 through 8 of the SW data are

0.

MSB

0

0

0

0

b3

b2

b1

b0

LSB

SW1

SW2

SW3

SW4

Commands

Commands set the display mode and status of the FIP driver.

The first 1 byte input to the

If STB 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

PD16312 and select the number of segments and the number of grids (1/4 to

1/11 duty, 11 segments to 16 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

00

−−

− b2 b1 b0

Irrelevant

LSB

Display mode settings

000

001

010

011

100

101

110

111

: 4 digits, 16 segments

: 5 digits, 16 segments

: 6 digits, 16 segments

: 7 digits, 15 segments

: 8 digits, 14 segments

: 9 digits, 13 segments

: 10 digits, 12 segments

: 11 digits, 11 segments

On power application, the 11-digit, 11-segment mode is selected.