In SX Microcontrollers, SX/B Compiler and SX-Key Tool, davehein wrote: You connect the A2, A1 and A0 pins differently on the two chips, and then configure three bits in the device address to select the chips. The mapping is shown below. The "P" bits in the device address refer the the "A" pins on the chip. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=208763#m208788 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)