V-Series Transceiver PHY IP Core User Guide

ID 683171
Date 7/26/2022
Public
Document Table of Contents

3.8. Analog Parameters for Stratix IV Devices

For Stratix IV devices, you specify analog options on the Analog Options tab.
Table 12.  PMA Analog Options for Stratix IV Devices
Name Value Description
Transmitter termination resistance

OCT_85_OHMS,

OCT_100_OHMS,

OCT_120_OHMS,

OCT_150_OHMS

Indicates the value of the termination resistor for the transmitter.
Transmitter VOD control setting 0–7 Sets VOD for the various TX buffers.
Pre-emphasis pre-tap setting 0–7 Sets the amount of pre-emphasis on the TX buffer.
Invert the pre-emphasis pre-tap polarity setting On, Off

Determines whether or not the pre-emphasis control signal for the pre-tap is inverted. If you turn this option on, the pre-emphasis control signal is inverted.

Pre-emphasis first post-tap setting 0-15 Sets the amount of pre-emphasis for the 1st post-tap.
Pre-emphasis second post-tap setting 0–7 Sets the amount of pre-emphasis for the 2nd post-tap.
Invert the pre-emphasis second post-tap polarity On, Off Determines whether or not the pre-emphasis control signal for the second post-tap is inverted. If you turn this option on, the pre-emphasis control signa is inverted.
Receiver common mode voltage

Tri-State

0.82V

1.1v

Specifies the RX common mode voltage.
Receiver termination resistance

OCT_85_OHMS

OCT_100_OHMs

OCT_120_OHMS

OCT_150_OHMS

Indicates the value of the termination resistor for the receiver.
Receiver DC 0-4 Sets the equalization DC gain using one of the following settings:
  • 0: 0 dB
  • 1: 3 dB
  • 2: 6 dB
  • 3: 9 dB
  • 4: 12 dB
Receiver static equalizer setting: 0-15 This option sets the equalizer control settings. The equalizer uses a pass band filter. Specifying a low value passes low frequencies. Specifying a high value passes high frequencies.

Analog Parameters for Arria V, Arria V GZ, and Stratix V Devices

Click on the appropriate links to review the analog parameters for these devices.

Did you find the information on this page useful?

Characters remaining:

Feedback Message