CMAC/GT Selections and Configuration Tab

CMAC/GT Selections and Configuration Tab - 3.1 English

UltraScale+ Devices Integrated 100G Ethernet Subsystem Product Guide (PG203)

Document ID

PG203

Release Date

2023-11-01

Version

3.1 English

This CMAC/GT Selection and Configuration tab, shown in This Figure, is used to configure transceiver resources. The window loads with default values that are pre-populated.

Figure 4-3: CMAC/GT Selections and Configuration Tab
X-Ref Target - Figure 4-3

Table: GT Selections and Configuration Tab describes the GT Selection and Configuration tab options.

Table 4-3: GT Selections and Configuration Tab
Parameter	Description	Default Value	Range
GT Location
GT Location Selection	Select whether the GT IP is included in the core or in the example design	Include GT subcore in core	Include GT subcore in core Include GT subcore in example design
CMAC Lane to Transceiver Association
CMAC Core Selection	Select 100G Ethernet Hard IP core location	Based on the FPGA, part number, CMAC Mode and GT type selected	Based on the FPGA, part number, CMAC Mode and GT type selected, all the usable/configurable 100G Ethernet IP cores for that particular device/package will be listed.
GT Group Selection	Select the GT Group	Based on the FPGA, part number, CMAC Mode, GT type selected and also based on GT selection guidelines	Based on the FPGA, part number, CMAC Mode, GT type selected and also based on GT selection guidelines.
Lane-00 to Lane-09	Auto fill GT lanes based on the GT Group selected	The best combination of transceivers will be auto filled based on the 100G Ethernet IP core location chosen	Based on the Mode selection (CAUI-10, CAUI-4, 100GAUI-2, or Runtime Switchable), the GT selection guidelines are followed. See Transceiver Selection Rules for more details.
Shared Logic
Include Shared Logic in	Determines the location of the transceiver shared logic	Core	Core Example Design
Advanced Options
Receiver
RX Insertion Loss at Nyquist (dB)	Specify the insertion loss of the channel between the transmitter and receiver at the Nyquist frequency in dB. Note: This option is available for Duplex and Simplex RX operation.	12	Depends on GT
RX Equalization Mode	When Auto is specified, the equalization mode implemented by the Wizard depends on the value specified for insertion loss at Nyquist. Refer to UG576/UG578 to determine the appropriate equalization mode for your system. Note: This option is available for Duplex and Simplex RX operation. This feature is selected as Auto with grayed out for the GTM transceiver type.	Auto	Auto DFE LPM
Clocking Options
RX GT Buffer	Controls whether the GT receiver elastic buffer bypass operates in multi-lane mode or single-lane mode. Note: This option is available for Duplex and Simplex RX operation. This feature is not applicable for the GTM transceiver type.	Enable	Enable Bypass
RX GT Buffer Bypass Mode	RX GT Buffer Bypass Mode. RX GT Buffer Bypass Mode is Multi-Lane when the RX GT Buffer option is set to Enable. RX GT Buffer Bypass Mode is Single-Lane when the RX GT Buffer option is set to Bypass. Note: This option is available for Duplex and Simplex RX operation. This feature is not applicable for the GTM transceiver type.	Multi-Lane	Multi-Lane Single-Lane
GT QPLL
PLL Type	GT PLL Type Note: This feature is not applicable for the GTM transceiver type.	QPLL0	QPLL0 QPLL1
Others
Enable Pipeline Register	Selecting this option will include one stage pipeline register between the CMAC core and the GT to ease timing.	0	0: Disable 1: Enable
Enable Additional GT Control/Status and DRP Ports	Enable Additional GT Control/Status and DRP Ports	0	0: Disable 1: Enable