Category: <b>serial I/O</b>
<p>
<pre><b>INT 14 - Alloy MW386 v1.x only - RELEASE PHYSICAL COMMUNICATIONS PORT</b>

	AH = 21h
	DX = physical port number
Return: AX = status
	    0000h successful
	    FFFFh failed
SeeAlso: AH=20h"Alloy",AH=22h"Alloy"
</pre>