>mode is. Microchip says they will be fixing this in the future, but I don't >know when. They have fixed it in the '76/77/66/67 parts. Now we just have to wait for newer revs on all the 6x/7x parts. And wait. And wait. The Microchip docs on these parts that I've seen explain the fixes. >I also think I found an additional error not listed in the >errata. The RXdata pin (RC7) must be set to input using the TRISC register >when using the SCI receive. In the PIC16C65A data sheet in the 95-96 SCI receive, or USART? Sounds like you're using the USART from your other comments. This is how it is supposed to operate. Always been that way, expect it always will. You will find that the peripherals tend to require the I/O pins to be set correctly. The "fixed USART" parts are this way too, and I expect you haven't checked all the app notes. Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================