PL_LANE15_EQ_CONTROL (CPM4_PCIE1_ATTR) Register

Versal Adaptive SoC Register Reference (AM012)

Document ID
AM012
Release Date
2023-08-29
Revision
1.3

PL_LANE15_EQ_CONTROL (CPM4_PCIE1_ATTR) Register Description

Register NamePL_LANE15_EQ_CONTROL
Relative Address0x0000000154
Absolute Address 0x00FCA60154 (CPM4_PCIE1_ATTR)
Width32
TyperwNormal read/write
Reset Value0x00000000
DescriptionLane#15 Equalization Control Register: Sets the appropriate lane specific entry in the
Equalization Control Register in Secondary PCI Express Extended Capability Header. Bit[3:0] - Downstream Port Transmitter Preset, Bit[6:4] Downstream Port Receiver Preset Hint, Bit[11:8] Upstream Port Transmitter Preset, Bit[14:12] Upstream Port Receiver Preset Hint. Lower 16b for Gen3 operation and Upper 16b for Gen4 operation. Bits 7, 15, 23, 31 are unused.

This register should only be written to during reset of the PCIe block

PL_LANE15_EQ_CONTROL (CPM4_PCIE1_ATTR) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
attr31:0rwNormal read/write0x0Lane#15 Equalization Control Register: Sets the appropriate lane specific entry in the
Equalization Control Register in Secondary PCI Express Extended Capability Header. Bit[3:0] - Downstream Port Transmitter Preset, Bit[6:4] Downstream Port Receiver Preset Hint, Bit[11:8] Upstream Port Transmitter Preset, Bit[14:12] Upstream Port Receiver Preset Hint. Lower 16b for Gen3 operation and Upper 16b for Gen4 operation. Bits 7, 15, 23, 31 are unused.