frame control register
| HD | High drive enable |
| SOFIE | Start of frame interrupt enable |
| UDDIE | Update display done interrupt enable |
| PON | Pulse ON duration |
| DEAD | Dead time duration |
| CC | Contrast control |
| BLINKF | Blink frequency selection |
| BLINK | Blink mode selection |
| DIV | DIV clock divider |
| PS | PS 16-bit prescaler |