ZHCSO29 July 2021 LP5890
PRODUCTION DATA
The LP5890 defines a timing sequence of scan line transition. T_SW is the total transitioning time.
Table 8-4 is the relation between LINE_SWT bits and the line switch time (GCLK numbers) with different internal GCLK frequency.
| LINE_SWT | GCLK numbers | T_SW (us, 40 MHZ GCLK) | T_SW (us, 60 MHZ GCLK) | T_SW (us, 100 MHZ GCLK) | T_SW (us, 120 MHZ GCLK) | T_SW(us, 160 MHZ GCLK) |
|---|---|---|---|---|---|---|
| 0000b | 45 | 1.125 | 0.7515 | 0.45 | 0.3735 | 0.2835 |
| 0001b | 60 | 1.5 | 1.002 | 0.6 | 0.498 | 0.378 |
| 0010b | 90 | 2.25 | 1.503 | 0.9 | 0.747 | 0.567 |
| 0011b | 120 | 3 | 2.004 | 1.2 | 0.996 | 0.756 |
| 0100b | 150 | 3.75 | 2.505 | 1.5 | 1.245 | 0.945 |
| 0101b | 180 | 4.5 | 3.006 | 1.8 | 1.494 | 1.134 |
| 0110b | 210 | 5.25 | 3.507 | 2.1 | 1.743 | 1.323 |
| 0111b | 240 | 6 | 4.008 | 2.4 | 1.992 | 1.512 |
| 1000b | 270 | 6.75 | 4.509 | 2.7 | 2.241 | 1.701 |
| 1001b | 300 | 7.5 | 5.01 | 3 | 2.49 | 1.89 |
| 1010b | 330 | 8.25 | 5.511 | 3.3 | 2.739 | 2.079 |
| 1011b | 360 | 9 | 6.012 | 3.6 | 2.988 | 2.268 |
| 1100b | 390 | 9.75 | 6.513 | 3.9 | 3.237 | 2.457 |
| 1101b | 420 | 10.5 | 7.014 | 4.2 | 3.486 | 2.646 |
| 1110b | 450 | 11.25 | 7.515 | 4.5 | 3.735 | 2.835 |
| 1111b | 480 | 12 | 8.016 | 4.8 | 3.984 | 3.024 |
T0 is set by the LINE_SW_T0 (see FC4 for more details). T2 constantly equals to 5 GCLKs.
T1 and T3 can be calculated by LINE_TIMEMODE (see FC0 for more details).