Visible to Intel only — GUID: iga1401317334760
Ixiasoft
Visible to Intel only — GUID: iga1401317334760
Ixiasoft
11.2.3. Transmitter Logic
These two registers provide double buffering. A host peripheral can write a new value into the txdata register while the previously written character is being shifted out. The host peripheral can monitor the transmitter's status by reading the status register's transmitter ready (TRDY), transmitter shift register empty (tmt), and transmitter overrun error (TOE) bits.
The transmitter logic automatically inserts the correct number of start, stop, and parity bits in the serial TXD data stream as required by the RS-232 specification.