From: ntfreak <ntfreak@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Fri, 7 Aug 2009 09:29:41 +0000 (+0000)
Subject: David Brownell <david-b@pacbell.net>:
X-Git-Tag: v0.3.0-rc0~374
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=732df6fea0fed36b2f90e0b20f1031e230eccb6f;p=openocd

David Brownell <david-b@pacbell.net>:
Better explanation for the TAP "-ircapture" parameter.


git-svn-id: svn://svn.berlios.de/openocd/trunk@2577 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---

diff --git a/doc/openocd.texi b/doc/openocd.texi
index 18077ccd..7c3b70e8 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -2198,7 +2198,10 @@ Every TAP requires at least the following @var{configparams}:
 
 @itemize @bullet
 @item @code{-ircapture} @var{NUMBER}
-@*The IDCODE capture command, such as 0x01.
+@*The bit pattern loaded by the TAP into the JTAG shift register
+on entry to the @sc{ircapture} state, such as 0x01.
+JTAG requires the two LSBs of this value to be 01.
+The value is used to verify that instruction scans work correctly.
 @item @code{-irlen} @var{NUMBER}
 @*The length in bits of the
 instruction register, such as 4 or 5 bits.