Rainbow Electronics AT91CAP9S250A - Manual (Page 577)

577
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
1: Logic Zero is coded as a one-to-zero transition, Logic One is coded as a zero-to-one transition.
• DRIFT: Drift compensation
0: The USART can not recover from an important clock drift
1: The USART can recover from clock drift. The 16X clock mode must be enabled.