17.68 UDDRC Status Debug Register
| Name: | UDDRC_DBGSTAT |
| Offset: | 0x310 |
| Reset: | 0x00000000 |
| Property: | Read-only |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| Access | |||||||||
| Reset |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| CTRLUPD_BUSY | ZQ_CALIB_SHORT_BUSY | RANK0_REFRESH_BUSY | |||||||
| Access | R | R | R | ||||||
| Reset | 0 | 0 | 0 |
Bit 5 – CTRLUPD_BUSY
SoC core may initiate a ctrlupd operation only if this signal is low.
This signal goes high in the clock after the UDDRC accepts the ctrlupd request. It goes low when the ctrlupd operation is initiated in the UDDRC.
It is recommended not to perform ctrlupd operations when this signal is high.
Programming Mode: Dynamic
| Value | Description |
|---|---|
| 0 | Indicates that the SoC core can initiate a ctrlupd operation. |
| 1 | Indicates that ctrlupd operation has not been initiated yet in the UDDRC. |
Bit 4 – ZQ_CALIB_SHORT_BUSY
SoC core may initiate a ZQCS (ZQ calibration short) operation only if this signal is low. This signal goes high in the clock after the UDDRC accepts the ZQCS request. It goes low when the ZQCS operation is initiated in the UDDRC. It is recommended not to perform ZQCS operations when this signal is high.
Programming Mode: Dynamic
| Value | Description |
|---|---|
| 0 | Indicates that the SoC core can initiate a ZQCS operation. |
| 1 | Indicates that ZQCS operation has not been initiated yet in the UDDRC. |
Bit 0 – RANK0_REFRESH_BUSY
SoC core may initiate a rank0_refresh operation (refresh operation to rank 0) only if this signal is low.
This signal goes high in the clock after DBGCMD.rank0_refresh is set to one. It goes low when the rank0_refresh operation is stored in the UDDRC.
It is recommended not to perform rank0_refresh operations when this signal is high.
Programming Mode: Dynamic
| Value | Description |
|---|---|
| 0 | Indicates that the SoC core can initiate a rank0_refresh operation. |
| 1 | Indicates that rank0_refresh operation has not been stored yet in the UDDRC. |