SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The below Table 24-494 shows the device integrated PCI Express subsystem interface signals to external PCIe devices.
| Device Level Signal Name | I/O(1) | Description | Reset Value |
|---|---|---|---|
| pcie_txp0 | O | TX output of the PCIe port 0 PHY differential transmission line (positive by default) Section 24.9.3 | 0 |
| pcie_txn0 | O | TX output of the PCIe port 0 PHY differential transmission line (negative by default) Section 24.9.3 | 0 |
| pcie_rxp0 | I | RX input of the PCIe port 0 PHY differential reception line (positive by default) Figure 24-160 | HiZ |
| pcie_rxn0 | I | RX input of the PCIe port 0 PHY differential reception line (negative by default) Figure 24-160 | HiZ |
| pcie_txp1 | O | TX output of the PCIe port 0 PHY differential transmission line (positive by default) Section 24.9.3 | 0 |
| pcie_txn1 | O | TX output of the PCIe port 0 PHY differential transmission line (negative by default) Section 24.9.3 | 0 |
| pcie_rxp1 | I | RX input of the PCIe port 1 PHY differential reception line (positive by default) Figure 24-160 | HiZ |
| pcie_rxn1 | I | RX input of the PCIe port 1 PHY differential reception line (negative by default) Figure 24-160 | HiZ |
| ljcb_clkp | I/O | Differential clock positive input or output | HiZ |
| ljcb_clkn | I/O | Differential clock negative input or output | HiZ |
| PCIE_B1C0_MODE_SEL(1) | PCIE_B0_B1_TSYNCEN(1) | Port 0 | Port 1 |
|---|---|---|---|
| 0 (C0) (default) | 0 | PCS1 (MAC B) lane 0 | PCS2 (MAC C) lane 0 |
| 1 (B1) | 0 | PCS1 (MAC B) lane 0 | - |
| 1 (B1) | 1 | PCS1 (MAC B) lane 0 | PCS1 (MAC B) lane 1 |
For more information on the interface between PCIe_SS controller and PCIe_PHY, see Section 26.4.4.1, PCIe Shared PHY Subsystem Block Diagram, and Section 26.4.4, PCIe Shared PHY Subsystem Functional Descriptions in Section 26.4, PCIe Shared PHY Subsystem.