diff --git a/specification/ch_2.xml b/specification/ch_2.xml
index 8490dc7..47b346d 100644
--- a/specification/ch_2.xml
+++ b/specification/ch_2.xml
@@ -2615,6 +2615,24 @@ xml:id="dbdoclet.50655240_pgfId-1156194">
216 – 1.
+
+
+
+
+
+ vector pixel
+
+
+ 16
+
+
+ Quadword
+
+
+ Vector of 8 halfwords containing a 1-bit
+ channel and three 5-bit channels.
+
+