Horizontal START position
Bits 7-0 contain the stop and start positions, respectively, for programmed horizontal blanking in 280ns increments. Bits 10-8 provide a fine position control in 35ns increments.
| Bit | Function | Description |
|---|---|---|
| 15-11 | 0 | Unused |
| 10 | H1 | 140ns |
| 09 | H1 | 70ns |
| 08 | H0 | 35ns |
| 07 | H10 | 35840ns |
| 06 | H9 | 17920ns |
| 05 | H8 | 8960ns |
| 04 | H7 | 4480ns |
| 03 | H6 | 2240ns |
| 02 | H5 | 1120ns |
| 01 | H4 | 560ns |
| 00 | H3 | 280ns |