diff --git a/Documentation/NuttxPortingGuide.html b/Documentation/NuttxPortingGuide.html
index 2a156f00803..e02e85cc502 100644
--- a/Documentation/NuttxPortingGuide.html
+++ b/Documentation/NuttxPortingGuide.html
@@ -3202,6 +3202,9 @@ extern void up_ledoff(int led);
     </p>
   </li>
 </ul>
+<p>
+  <center><img src="pm.png"></center>
+</p>
 <p>
   The PM sub-system integrates the MCU idle loop with a collection of device drivers to support:
 </p>
diff --git a/Documentation/pm.png b/Documentation/pm.png
new file mode 100755
index 00000000000..d84d8642dc0
Binary files /dev/null and b/Documentation/pm.png differ