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reference/index.html

@@ -3496,7 +3496,17 @@ <h5 id="_arguments_8">Arguments</h5>
 <p>0: notification bitmask corresponding to the interrupt</p>
 </li>
 <li>
-<p>1: desired state (0 = disabled, 1 = enabled)</p>
+<p>1: desired state</p>
+<div class="ulist">
+<ul>
+<li>
+<p>bit 0: 0 = disabled, 1 = enabled</p>
+</li>
+<li>
+<p>bit 1: 0 = leave pending, 1 = clear pending</p>
+</li>
+</ul>
+</div>
 </li>
 </ul>
 </div>
@@ -3548,6 +3558,14 @@ <h5 id="_notes_7">Notes</h5>
 </li>
 </ol>
 </div>
+<div class="paragraph">
+<p>The concept of a "pending" interrupt is inherently specific to a particular
+architecture and interrupt controller. On an architecture without a concept of
+pending interrupts, bit 1 has no effect. However, on architectures with
+level-triggered interrupts from peripherals and a concept of "pending"
+interrupts, clearing the pending status when re-enabling may be important for
+avoiding a duplicate notification.</p>
+</div>
 </div>
 </div>
 <div class="sect3">
@@ -5714,7 +5732,7 @@ <h2 id="_references">References</h2>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2024-12-13 22:18:17 UTC
+Last updated 2024-12-13 22:40:12 UTC
 </div>
 </div>
 </body>