User guide

Table 8-4: Available Options
Value Description
SR Chip-to-chip communication
LR Backplane communication
Note: The maximum data rate supported by transceiver channels depends on the device speed grade,
power mode, and the type of channel used. Refer to Arria 10 Device Datasheet for more details.
Assign To
RX serial data.
Syntax
set_instance_assignment -name XCVR_A10_RX_LINK <value> -to <rx_serial_data pin name>
Related Information
Arria 10 Device Datasheet
XCVR_A10_RX_TERM_SEL
Pin planner or Assignment Editor Name
Receiver On-Chip Termination
Description
Controls the on-chip RX differential termination. For data rates higher than 25 Gbps, set the termination
resistance to 85 Ohm.
When the data rate is greater than 25 Gbps, the default value is R_R2. When the data rate is less than 25
Gbps, the default value is R_R1 for protocols such as PCIe, GPON, SATA, and QPI. For other protocols,
the default value is R_R2.
Table 8-5: Available Options
Value Description
R_EXT0 Tristate
R_R1 100 Ohm
R_R2 85 Ohm
Assign To
RX serial data.
UG-01143
2015.05.11
XCVR_A10_RX_TERM_SEL
8-5
Analog Parameter Settings
Altera Corporation
Send Feedback