PxSNTF (SATA_AHCI_PORTCNTRL) Register Description
| Register Name | PxSNTF |
|---|---|
| Offset Address | 0x000000003C |
| Absolute Address |
0x00FD0C013C (SATA_AHCI_PORT0_CNTRL) 0x00FD0C01BC (SATA_AHCI_PORT1_CNTRL) |
| Width | 32 |
| Type | mixedMixed types. See bit-field details. |
| Reset Value | 0x00000000 |
| Description | Port x Serial ATA Notification (SCR4: SNotification) |
Used to determine if asynchronous notification events have occurred for directly connected devices and devices connected to a Port Multiplier.
PxSNTF (SATA_AHCI_PORTCNTRL) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| Reserved | 31:16 | roRead-only | 0x0 | Reserved |
| PMN | 15:0 | wtcReadable, write a 1 to clear | 0x0 | PM Notify (PMN): This field indicates whether a particular device with the corresponding PM Port number issued a Set Device Bits FIS to the host with the Notification bit set. PM Port 0h sets bit 0.. PM Port Fh sets bit 15 Individual bits are cleared by software writing 1s to the corresponding bit positions. This field is reset to default on a HBA Reset, but it is not reset by COMRESET or software reset. |