Intel® Agilex™ Device Family Pin Connection Guidelines

ID 683112
Date 9/22/2022
Public
Document Table of Contents

1.6.1. R-Tile Power Supply Pins

Note: Intel® recommends that you create an Intel® Quartus® Prime design, enter your device I/O assignments, and compile the design. The Intel® Quartus® Prime software will check your pin connections according to I/O assignment and placement rules. The rules differ from one device to another based on device density, package, I/O assignments, voltage assignments, and other factors that are not fully described in this document or the device handbook.
Table 20.  R-Tile Power Supply Pins
Pin Name Pin Functions Pin Description Connection Guidelines
VCC_HSSI_GXR[L,R] Power

Primary digital supply for all digital signals, specific to R-tile.

For more information about the supported pins, refer to the device pin-out file.

Connect VCC_HSSI_GXR to a 0.9-V low noise switching regulator. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for decoupling capacitor requirement.

Connect to GND if not used.

VCCH_GXR[L,R] Power

Secondary high-voltage analog supply for transceivers.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCH_GXR to a 1.8-V low noise switching regulator. This voltage rail can be shared with VCCPT using proper isolation filtering.

To minimize regulator switching noise impact on channel jitter performance, keep the regulator switching frequency below 1 MHz. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for decoupling capacitor requirement.

Connect to GND if not used.

VCCED_GXR[L,R] Power

Transceiver digital supply.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCED_GXR to a dedicated 0.9-V linear regulator or low noise switching regulator. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for decoupling capacitor requirement.

Connect to GND if not used.

VCCRT_GXR[L,R] Power

Analog power, used for the high-speed circuitry for the R-tile.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCRT_GXR to a dedicated 1.0-V linear regulator or low noise switching regulator with filter. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for fitter details and decoupling capacitor requirement.

This analog supply cannot be shared.

Connect to GND if not used.

VCCE_DTS_GXR[L,R] Power

DTS reference voltage at 1.0 V.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCE_DTS_GXR to the same regulator as VCCE_PLL_GXR. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for fitter details and decoupling capacitor requirement.

Connect to GND when not used.

VCCE_PLL_GXR[L,R] Power

Power for PLL reference signal.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCE_PLL_GXR to the same regulator as VCCE_DTS_GXR. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for fitter details and decoupling capacitor requirement.

Connect to GND when not used.

VCCHFUSE_GXR[L,R] Power

Power supply for programmable eFuse.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCHFUSE_GXR to a dedicated 1.0-V linear or low noise switching regulator.

VCCHFUSE_GXR must be powered up even when the R-tile transceivers are not used. For more details about the decoupling recommendations for this voltage rail, refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines.

VCCCLK_GXR[L,R] Power

Primary digital supply for all digital signals, specific to R-tile.

For more information about the supported pins, refer to the device pin-out file.

Connect VCCCLK_GXR to a 1.0-V low noise switching regulator.

VCCCLK_GXR can share through ferrite bead. Refer to AN 910: Intel Agilex Power Distribution Network Design Guidelines for decoupling capacitor requirement.

Connect to GND when not used.

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