I checked out the manual on 140. The only thing I did was define CHAR_PACING but that didn't work. I didn't see any more information. However, I found that holding the SEROUT pin high for 820us just before the SEROUT call works. I got this value by analyzing timing from the F84 chip compared the F818 chip and noticed the first high level change on the F84 chip lasted 820us longer that the first high level change on the F818 chip. Seems a little strange to me or else I'm still missing something. I'm trying to use the SEROUT command not the SEROUT2