Configures the exit power-down timing parameter for operations that do not require a DLL (tXP), and those that do (tXPDLL). t_xpdll must be greater than or equal to tRCD and tCKE. t_xp must be greater than or equal to tMPX_S.
The t_xp_now register characteristics are:
- Usage constraints
Can be read from when in ALL states. Cannot be written to and only updated when in CONFIG, LOW-POWER or PAUSED states.
There is only one DMC configuration.
The following figure shows the bit assignments.
Figure 3-291 t_xp_now register bit assignments
The following shows the bit assignments.
- [31:24] Reserved_2
- [23:16] t_xpdll_now
This delay is applied for subsequent commands requiring a DLL The supported range for this bitfield is 5-255.
- [15:8] Reserved_1
- [7:0] t_xp_now
This delay is applied for subsequent commands not requiring a DLL The supported range for this bitfield is 1-255.