3.3.273 t_rfc_now

Configures the tRFC timing parameter. This determines the delay applied after an AUTOREFRESH command before any other command is issued to the same rank.

The t_rfc_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.
Configurations
There is only one DMC configuration.
Attributes
Offset
0x1204
Type
Read-only
Reset
0x00008C23
Width
32
The following figure shows the bit assignments.
Figure 3-273 t_rfc_now register bit assignments
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The following shows the bit assignments.
[31:28] Reserved_1
Unused bits
[27:20] t_rfc_cs_now
Configures the minimum delay between AUTOREFRESH operations to different ranks. The supported range for this bitfield is 0-255.
[19:10] t_rfcfg_now
Configures the tRFC timing parameter for fine-grained AUTOREFRESH operations. The supported range for this bitfield is 2-700.
[9:0] t_rfc_now
Configures the tRFC timing parameter for all-bank AUTOREFRESH operations. The supported range for this bitfield is 2-700.
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