インテル® Stratix® 10コンフィグレーション・ユーザーガイド

ID 683762
日付 12/16/2019
Public
ドキュメント目次

2.4.3.2. 兼用ピンのイネーブル

AVST_CLK, AVST_DATA[15:0], AVST_DATA[31:16], and AVST_VALID are dual-purpose pins. Once the device enters user mode these pins can function either as GPIOs or as tri-state inputs.
If you use these pins as GPIOs, make the following assignments:
  • Set VCCIO of the I/O bank at 1.8 V
  • Assign the 1.8 V I/O standard to these pins

Complete the following steps to assign these settings to the dual-purpose pins:

  1. Assignmentsメニューで、Deviceをクリックします。
  2. In the Device and Pin Options dialog box, select the Dual-Purpose Pins category.
  3. Dual-purpose pinsテーブルで、 Value列にピン機能を設定します。
  4. Click OK to confirm and close the Device and Pin Options
    重要: When you use the Avalon® ST configuration scheme the dual-purpose Avalon® ST pins have the following restrictions:
    • Avalon® -STインターフェイスをパーシャル・リコンフィグレーション (PR) に使用することはできません。
    • You cannot use the Avalon® -ST pins in user mode in designs that include the HPS. This restriction means that you cannot use the Avalon® -ST as dual-purpose I/Os in designs that include the HPS.