What are the legal TX common mode voltage QSF assignments when using the 1.5-V PCML I/O Standard for Stratix V GX/GT and Arria V GZ devices?

Description

When the Transceiver I/O Standard is set to 1.5-V PCML on Stratix® V GX/GT or Arria® V GZ devices, the valid TX Common Mode Voltage settings are:

For data rates < 6.5Gbps and VCCR_GXB/VCCT_GXB = 0.85V:

• XCVR_TX_COMMON_MODE_VOLTAGE  = VOLT_0P50V

All other cases:

• XCVR_TX_COMMON_MODE_VOLTAGE  = VOLT_0P65V