
Chapter 18: Analog Parameters Set Using QSF Assignments 18–15
Analog Settings for Stratix V Devices
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
XCVR_RX_DC_GAIN
Receiver Buffer DC Gain
Control
Controls the RX buffer DC gain for GX
channels.
0–4
Pin -
RX serial
data
XCVR_RX_LINEAR_EQUALIZER_
CONTROL
Receiver Linear Equalizer
Control
Static control for the continuous time
equalizer in the receiver buffer. The
equalizer has 16 distinct settings from
0 –15 corresponding to the increasing
AC gain.
1 –16
Pin -
RX serial
data
Analog Parameters with Computed Default Value
XCVR_GT_RX_COMMON_
MODE_VOLTAGE
GT receiver Buffer
Common Mode Voltage
Receiver buffer common-mode
voltage. This parameter is only for GT
transceivers.
VTT_0P8V
VTT_0P75V
VTT_0P7V
VTT_0P65V
VTT_0P6V
VTT_0P55V
VTT_0P5V
VTT_0P35V
VTT_VCMOFF7
VTT_VCMOFF6
VTT_VCMOFF5
VTT_VCMOFF4
VTT_VCMOFF3
VTT_VCMOFF2
VTT_VCMOFF1
VTT_VCMOFF0
Pin -
RX serial
data
XCVR_GT_RX_CTLE
GT Receiver Linear
Equalizer Control
Static control for the continuous time
equalizer in the receiver buffer. The
equalizer has 9 distinct settings from
0-8 corresponding to increasing AC
gain. This parameter is only for GT
transceivers.
0-8
0
Pin -
RX serial
data
XCVR_GT_TX_COMMON_MODE_
VOLTAGE
GT Transmitter Common
Mode Driver Voltage
Transmitter common-mode driver
voltage. This parameter is only for GT
transceivers.
VOLT_0P80V
VOLT_0P75V
VOLT_0P70V
VOLT_0P65V
VOLT_0P60V
VOLT_0P55V
VOLT_0P50V
VOLT_0P35V
PULL_UP
PULL_DN
TRISTATED1
GROUNDED
PULL_UP_TO_
VCCELA
TRISTATED2
TRISTATED3
TRISTATED4
Pin -
TX serial
data
XCVR_GT_TX_PRE_EMP_1ST_
POST_TAP
GT Transmitter
Preemphasis First
Post-Tap
Specifies the first post-tap setting
value. This parameter is only for GT
transceivers.
0-31
5
Pin -
TX serial
data
Table 18–8. Transceiver and PLL Assignments for Stratix V Devices (Part 2 of 5)
QSF Assignment Name
Pin Planner and
Assignment Editor
Name
Description Options Assign To
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