Datasheet

SAM9G20
DS60001516A-page 476  2017 Microchip Technology Inc.
STTTO: Start Time-out
0: No effect.
1: Starts waiting for a character before clocking the time-out counter. Resets the status bit TIMEOUT in US_CSR.
SENDA: Send Address
0: No effect.
1: In Multidrop Mode only, the next character written to the US_THR is sent with the address bit set.
RSTIT: Reset Iterations
0: No effect.
1: Resets ITERATION in US_CSR. No effect if the ISO7816 is not enabled.
RSTNACK: Reset Non Acknowledge
0: No effect
1: Resets NACK in US_CSR.
RETTO: Rearm Time-out
0: No effect
1: Restart Time-out
DTREN: Data Terminal Ready Enable
0: No effect.
1: Drives the pin DTR at 0.
DTRDIS: Data Terminal Ready Disable
0: No effect.
1: Drives the pin DTR to 1.
RTSEN: Request to Send Enable
0: No effect.
1: Drives the pin RTS to 0.
RTSDIS: Request to Send Disable
0: No effect.
1: Drives the pin RTS to 1.