Zynq UltraScale+ Devices Register Reference > Module Summary > SATA_AHCI_PORTCNTRL Module > PxSSTS (SATA_AHCI_PORTCNTRL) Register
Register Name | PxSSTS |
---|---|
Relative Address | 0x0000000028 |
Absolute Address |
0x00FD0C0128 (SATA_AHCI_PORT0_CNTRL) 0x00FD0C01A8 (SATA_AHCI_PORT1_CNTRL) |
Width | 32 |
Type | roRead-only |
Reset Value | 0x00000000 |
Description | Port x serial ATA Status (SCR0: Sstatus) (PxSSTS) |
This 32-bit register conveys the current state of the interface and host. The HBA updates it continuously and asynchronously. When the HBA transmits a COMRESET to the device, this register is updated to its reset values.
Field Name | Bits | Type | Reset Value | Description |
---|---|---|---|---|
Reserved | 31:12 | roRead-only | 0x0 | Reserved |
IPM | 11:8 | roRead-only | 0x0 | Interface Power Management (IPM): Indicates the current interface state. 0: No Device |
SPD | 7:4 | roRead-only | 0x0 | Current Interface Speed (SPD): Indicates the negotiated interface communication speed. 0: No Device |
DET | 3:0 | roRead-only | 0x0 | Device Detection (DET): Indicates the interface device detection and Phy state*. 0: No Device * The means by which the implementation determines device presence may be vendor specific. However, device presence shall always be indicated anytime a COMINIT signal is received. |