At 08:09 PM 8/15/97 -0400, you wrote: >Microchip says the problem occurs when the serial port is put in the >"high speed" mode. In this mode the baud rate is 16x the serial port >clock. In the normal mode the baud rate is 64x the serial port clock. >If you are able to choose the PIC crystal frequency, then you can likely >find one which will match the PC baud rate without needing to use the >high speed mode. Someone else may know better than I do but I thought >the UARTs in all the PICs that have them are the same, that is they will >all have the problem. You are right about what the problem is, however, not all pics have the problem. The erratum was fixed in the 16C67,16C77, as well as a few others (I don't offhand remember which ones exactly). Sean