SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
Apart from the SATA communication-dedicated electrical connections to the SATA_PHY component, there is an additional SATA-defined-led drive generation signal that can be output at the device pad: spi1_cs[1] . For more information about this signal pad configuration register mapping, see Pad Configuration Registers in Control Module. For more details regarding the behavior of activity LED generation, see Section 24.8.4.10, Activity LED Generation Functionality.
Module Pin Name | Device Level Signal Name | I/O(1) | Description | Reset Value |
---|---|---|---|---|
TXP(2) | sata1_txp0 | O | TXP output of the SATA PHY differential transmission line | 0 |
TXN(2) | sata1_txn0 | O | TXN output of the SATA PHY differential transmission line | 0 |
RXP(2) | sata1_rxp0 | I | RXP input of the SATA PHY differential reception line | Hi-Z |
RXN(2) | sata1_rxn0 | I | RXN input of the SATA PHY differential reception line | Hi-Z |
ACT0_LED | sata1_led | O | HBA port activity LED indication | Hi-Z |
The path from module pin to device pad(s) is defined at the device I/O logic level. The I/O logic maps the module signals to the different pads of the device and is programmable in the Control Module registers. For more information, refer to the sections Pad Configuration Rregisters, and Control Module Register Manual, in Control Module, for more information.
The Figure 24-152 shows the SATA host controller subsystem environment summarizing the interface signals exported directly from SATA controller at the device boundary, as well as those exported after SATA_PHY processing at the device boundary. For more information on the interface between the SATA controller and SATA_PHY , see Chapter 26, Shared PHY Component Subsytsems.