| Instruction | Symbol | Description |
| Duty Select | DY | Set the l/3duty or l/4duty. 0: 1/3 Duty 1: 1/4 Duty |
| EVR Register Set | EO-E2 | Set the contraction for 000 - 111 (8-voltage conditions) |
| Power Save mode set | SO-S1 | 00: Normal 01: Power save 1 10: Power save 2 11: Power save 3 |
| Segment output/ Key scan output selection | KOK1 | 00: 30 keys 01: 25 keys 1x: 20 keys "x" is Don't care |
| Segment output/ General output port selection | POP1 | 00: 4 segment outputs 01: 2 General output ports 10: 3 General output ports 11: 4 General output ports |
| Display ON / OFF | SC | 0: Display ON 1: Display OFF |
| Bias selection | DR | 0: 1/3 bias 1: 1/2 bias (connect Vl to V2 terminal) |
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