Are your bank bits set correctly?

For example, you list:

        BCF     TXSTA, SYNC
        BCF     RCSTA, SPEN

But TXSTA is in bank1, and RCSTA is in bank0.

Thus, you would have to do the following:
        BCF     STATUS, RP1
        BSF     STATUS, RP0
        BCF     TXSTA, SYNC

        BCF     STATUS, RP1
        BCF     STATUS, RP0
        BCF     RCSTA, SPEN

For the complete 16F627 memory map (keep this handy while programming!), see
page 14 of the PIC16F62X datasheet.

Jen

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