Intel Arria 10 - Dedicated Reference Clock Settings; XcvrA10 RefclkTermTristate

Table 329. Available Options
Value Description
0 – 31 Magnitude 0 – 31
Note: Refer to Arria 10 Pre-Emphasis and Output Swing Settings spreadsheet for selecting
legal pre-emphasis and differential output voltage settings.
Assign To
TX serial data pin.
Syntax
set_instance_assignment -name XCVR_A10_TX_VOD_OUTPUT_SWING_CTRL
<value> -to <tx_serial_data pin name>
Related Information
Arria 10 Pre-Emphasis and Output Swing Settings
8.9. Dedicated Reference Clock Settings
8.9.1. XCVR_A10_REFCLK_TERM_TRISTATE
Pin planner or Assignment Editor Name
Dedicated Reference Clock Pin Termination
Description
Specifies if the termination for dedicated reference clock pin is tri-stated. It defaults to
TRISTATE_OFF for non-HCSL cases.
Table 330. Available Options
Value Description
TRISTATE_OFF Internal termination enabled and on-chip biasing circuitry enabled
TRISTATE_ON Internal termination tri-stated. Off-chip termination and biasing circuitry must be implemented
Table 331. Rules
I/O Standard Value
HCSL TRISTATE_ON
CML TRISTATE_OFF
LVPECL TRISTATE_OFF
LVDS TRISTATE_OFF
Assign To
Reference clock pin.
8. Analog Parameter Settings
UG-01143 | 2018.06.15
Intel
®
Arria
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10 Transceiver PHY User Guide
605