L- and H-Tile Transceiver PHY User Guide

ID 683621
Date 1/30/2024
Document Table of Contents

A.1.3. Optional Reconfiguration Logic ATX PLL- Control & Status

Enables users to read the status of ATX PLL functions and reset the ATX PLL.
Name Address Type Attribute Name Encodings
PLL Locked Status


read-only atx_pll_locked Indicates if the ATX PLL is locked. 1'b1 indicates the ATX PLL is locked.
PLL Calibration Busy Status


read-only atx_cal_busy Indicates the ATX calibration status. 1'b1 indicates the ATX is currently being calibrated.
Avalon® memory-mapped interface Bus Busy Status


read-only atx_avmm_busy Shows the status of internal configuration bus arbitration. When set to 1'b1, PreSICE has control of the internal configuration bus. When set to 1'b0, you have control of the internal configuration bus. Refer to the Arbitration section for more details.
PLL Power-down


read-write atx_pll_powerdown Drives the PLL power-down when the Override is set
Override PLL Power-down


read-write atx_override_pll_powerdown Ensures the PLL listens to the NPDME pll_powerdown register. 1'b1 indicates the receiver listens to the NPDME pll_powerdown.