ZHCSBP5C september 2013 – october 2020 SN65DSI86
PRODUCTION DATA
By default, the DisplayPort PLL is disabled (DP_PLL_EN = 0). To perform any operations over the DisplayPort Main link interface, the DP_PLL_EN must be enabled. Before enabling the DisplayPort PLL, software must program the DP_DATARATE register with the desired datarate. Also if SSC is going to be used, the SSC_ENABLE and SSC_SPREAD should also be programmed. Once the DP_PLL_EN is programmed to 1, software should wait until the DP_PLL_LOCK bit is set before performing any DisplayPort Main Link operations.
Depending on SN65DSI86 configuration, the amount of time for the DP PLL to lock will vary. Table 8-10 describes the lock times for various configurations.
REFCLK_FREQ | SSC_ENABLE | MAXIMUM LOCK TIME |
---|---|---|
0 | X | 20 µs + (1152 × TREFCLK) |
1 | X | |
2 | X | |
4 | X | |
3 | 1 | |
3 | 0 | 20 µs + (128 × TREFCLK) |