SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
This section describes the PCIe subsystem application fields from an environment point of view (external connections).
The PCIe subsystems do not have any direct external interface pins. PCIe data transactions are implemented through the corresponding SERDES interface pins.
Table 12-238 describes the SERDES signal names at device level related to PCIe subsystems, and specifies their functions. For more information on the SERDES operation and interface signals, refer to Serializer/Deserializer (SerDes).
Device Level Signal | I/O(1) | Description |
---|---|---|
PCIE0 Subsystem | ||
PCIE0_RXN0 | I | PCIe Lane 0 Receive Differential Data (-) |
PCIE0_RXP0 | I | PCIe Lane 0 Receive Differential Data (+) |
PCIE0_TXN0 | O | PCIe Lane 0 Transmit Differential Data (-) |
PCIE0_TXP0 | O | PCIe Lane 0 Transmit Differential Data (+) |
PCIE0_RXN1 | I | PCIe Lane 1 Receive Differential Data (-) |
PCIE0_RXP1 | I | PCIe Lane 1 Receive Differential Data (+) |
PCIE0_TXN1 | O | PCIe Lane 1 Transmit Differential Data (-) |
PCIE0_TXP1 | O | PCIe Lane 1 Transmit Differential Data (+) |
PCIE0_REFCLKN | I | PCIe differential reference clock (-) |
PCIE0_REFCLKP | I | PCIe differential reference clock (+) |
PCIE0_CLKREQn | I/O | PCIe active-low clock request |
PCIE1 Subsystem | ||
PCIE1_RXN0 | I | PCIe Lane 0 Receive Differential Data (-) |
PCIE1_RXP0 | I | PCIe Lane 0 Receive Differential Data (+) |
PCIE1_TXN0 | O | PCIe Lane 0 Transmit Differential Data (-) |
PCIE1_TXP0 | O | PCIe Lane 0 Transmit Differential Data (+) |
PCIE1_RXN1 | I | PCIe Lane 1 Receive Differential Data (-) |
PCIE1_RXP1 | I | PCIe Lane 1 Receive Differential Data (+) |
PCIE1_TXN1 | O | PCIe Lane 1 Transmit Differential Data (-) |
PCIE1_TXP1 | O | PCIe Lane 1 Transmit Differential Data (+) |
PCIE1_REFCLKN | I | PCIe differential reference clock (-) |
PCIE1_REFCLKP | I | PCIe differential reference clock (+) |
PCIE1_CLKREQn | I/O | PCIe active-low clock request |
PCIE2 Subsystem | ||
PCIE2_RXN0 | I | PCIe Lane 0 Receive Differential Data (-) |
PCIE2_RXP0 | I | PCIe Lane 0 Receive Differential Data (+) |
PCIE2_TXN0 | O | PCIe Lane 0 Transmit Differential Data (-) |
PCIE2_TXP0 | O | PCIe Lane 0 Transmit Differential Data (+) |
PCIE2_RXN1 | I | PCIe Lane 1 Receive Differential Data (-) |
PCIE2_RXP1 | I | PCIe Lane 1 Receive Differential Data (+) |
PCIE2_TXN1 | O | PCIe Lane 1 Transmit Differential Data (-) |
PCIE2_TXP1 | O | PCIe Lane 1 Transmit Differential Data (+) |
PCIE2_REFCLKN | I | PCIe differential reference clock (-) |
PCIE2_REFCLKP | I | PCIe differential reference clock (+) |
PCIE2_CLKREQn | I/O | PCIe active-low clock request |
PCIE3 Subsystem | ||
PCIE3_RXN0 | I | PCIe Lane 0 Receive Differential Data (-) |
PCIE3_RXP0 | I | PCIe Lane 0 Receive Differential Data (+) |
PCIE3_TXN0 | O | PCIe Lane 0 Transmit Differential Data (-) |
PCIE3_TXP0 | O | PCIe Lane 0 Transmit Differential Data (+) |
PCIE3_RXN1 | I | PCIe Lane 1 Receive Differential Data (-) |
PCIE3_RXP1 | I | PCIe Lane 1 Receive Differential Data (+) |
PCIE3_TXN1 | O | PCIe Lane 1 Transmit Differential Data (-) |
PCIE3_TXP1 | O | PCIe Lane 1 Transmit Differential Data (+) |
PCIE3_REFCLKN | I | PCIe differential reference clock (-) |
PCIE3_REFCLKP | I | PCIe differential reference clock (+) |
PCIE3_CLKREQn | I/O | PCIe active-low clock request |
For more information about device level signals (pull-up/down resistors, buffer type, multiplexing and others), see tables Pin Attributes and Pin Multiplexing in the device-specific Datasheet.