Roger L Stevens wrote: > Are there currently any 12 bit or 14 bit architecture PICs that DO > NOT support the TRIS instruction ? No. Keep in mind, however, that the TRIS instruction ONLY works on PORTA, PORTB, and PORTC... So if you're using a 40-pin part, you'll have to configure PORTD and PORTE by writing to the TRISD and TRISE registers directly. -Andy === Andrew Warren - fastfwd@ix.netcom.com === Fast Forward Engineering - Vista, California === http://www.geocities.com/SiliconValley/2499 === For PICLIST help (including "unsubscribe" instructions), === put the single word "help" in the body of a message and === send it to: listserv@mitvma.mit.edu