Hello, TI Experts,
Our customer sent us some additional questions from E2E thread as below;
https://e2e.ti.com/support/arm/sitara_arm/f/791/t/570322
For PCIe, they understand AM5728 has configuration registers as follows for de-emphasis and swing.
- de-emphasis: "Table 24-740. PCIECTRL_EP_PCIEWIRE_LNK_CAS_2"
- de-emphasis: "Table 24-862. PCIECTRL_RC_DBICS_LNK_CAS_2"
- swing: "Table 24-904. PCIECTRL_PL_WIDTH_SPEED_CTL"
But they cannot find any explanation about those configuration bits.
They would like to know "what value should be set to those registers"
Their specifications for de-emphasis and swing are like this as below;
- de-emphasis： -X [dB]
- swing： XXX [mVppd]
We would appreciate if you tell us how to calculate the those register configuration value from their specifications of the above.
Best regards
