This field defines the command issued by the MPDDRC when the SDRAM device is
accessed. This register is used to initialize the SDRAM device and to activate Deep
Power-down mode.
| Value | Name | Description |
|---|
| 0 | NORMAL_CMD | Normal Mode.
Any access to the MPDDRC is decoded normally. To activate this mode, the command
must be followed by a write to the DDR-SDRAM. |
| 1 | NOP_CMD | The MPDDRC
issues a NOP command when the DDR-SDRAM device is accessed regardless of the
cycle. To activate this mode, the command must be followed by a write to the
DDR-SDRAM. |
| 2 | PRCGALL_CMD | The MPDDRC
issues the All Banks Pre-charge command when the DDR-SDRAM device is accessed
regardless of the cycle. To activate this mode, the command must be followed by a
write to the SDRAM. |
| 3 | LMR_CMD | The MPDDRC
issues a Load Mode Register command when the DDR-SDRAM device is accessed
regardless of the cycle. To activate this mode, the command must be followed by a
write to the DDR-SDRAM. |
| 4 | RFSH_CMD | The MPDDRC
issues an Auto-refresh command when the DDR-SDRAM device is accessed regardless of
the cycle. Previously, an All Banks Pre-charge command must be issued. To activate
this mode, the command must be followed by a write to the
DDR-SDRAM. |
| 5 | EXT_LMR_CMD | The MPDDRC
issues an Extended Load Mode Register command when the SDRAM device is accessed
regardless of the cycle. To activate this mode, the command must be followed by a
write to the DDR-SDRAM. The write in the DDR-SDRAM must be done in the appropriate
bank. |
| 6 | CALIB_CMD | Calibration
command: to calibrate RTT and RON values for the Process Voltage Temperature
(PVT) (DDR3-SDRAM device) |
