Xilinx Virtex UltraScale+ FPGAs - Page 51

Table 27: Digital Monitor Attributes (cont'd)
Attribute Type Description
CH[0/1]_RX_APT_CFG8B 16-bit Reserved.
Bit Name Bit Field Description
DEMONCON [14:12] Selector for DMON data for channel 0/1.
3’b000: Reserved.
3’b001: Reserved.
3’b010: Reserved.
3’b011: Choose FFE data through FFELOOPSEL.
3’b100: Choose DFE data through DFELOOPSEL.
3’b101: Reserved.
3’b110: Reserved.
3’b111: Reserved.
CH[0/1]_RX_APT_CFG12B
16-bit Reserved.
Bit Name Bit Field Description
TESTSEL [15] Must be set to 1’b0 when reading adaptation loops in channel 0/1.
CH[0/1]_RX_APT_CFG18A 16-bit Reserved.
Bit Name Bit Field Description
DFELOOPSEL [15:12] Selector to monitor DFE and CTLE adaptation loops for channel 0/1.
Value Adaptation Loop
4’b0100
DFE Tap 1.
4’b0110
AGC frequency gain.
4’b0111
Low frequency gain.
4’b1000
High frequency gain.
4’b1001
Base line wander cancellation.
Chapter 2: Shared Features
UG581 (v1.0) January 4, 2019 www.xilinx.com
Virtex UltraScale+ GTM Transceivers 51
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