25.4 Register Summary
| Offset | Name | Bit Pos. | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|
| 0x00 | CTRLA | 7:0 | CSIG[1:0] | CMODE[1:0] | ENABLE | |||||
| 0x01 | CTRLB | 7:0 | RXEN | TXEN | ||||||
| 0x02 | CTRLC | 7:0 | DORD | CPHA | SAMPR | FORM[2:0] | ||||
| 0x03 | CTRLD | 7:0 | PMODE[1:0] | SBMODE | CHSIZE[2:0] | |||||
| 0x04 | CTRLE | 7:0 | COLDEN | SFDEN | ODME | LBME | MPCM | |||
| 0x05 | CTRLF | 7:0 | INTDLY[3:0] | GUARD[1:0] | BRKLEN[1:0] | |||||
| 0x06 | CTRLG | 7:0 | ABW[1:0] | ENC | PROTCONV[2:0] | |||||
| 0x07 | COMMAND | 7:0 | WFBRK | LINCMD[1:0] | ||||||
0x08 | Reserved | |||||||||
| 0x09 | EVCTRL | 7:0 | RXEI | |||||||
| 0x0A | BAUD | 7:0 | BAUD[7:0] | |||||||
| 15:8 | BAUD[15:8] | |||||||||
| 0x0C | INTCTRL | 7:0 | ERROR | CTSIC | RXBRK | RXS | RXC | TXC | DRE | |
| 0x0D | INTFLAGS | 7:0 | ERROR | CTSIC | RXBRK | RXS | RXC | TXC | DRE | |
| 0x0E | STATUS | 7:0 | RXACTIVE | CTS | BUFOVF | FERR | PERR | COLL | ISF | |
0x0F | Reserved | |||||||||
| 0x10 | RXDATAL | 7:0 | DATA[7:0] | |||||||
| 0x11 | RXDATAH | 7:0 | BUFOVF | FERR | PERR | RXC | DATA[8] | |||
| 0x12 | TXDATAL | 7:0 | DATA[7:0] | |||||||
| 0x13 | TXDATAH | 7:0 | DATA[8] | |||||||
0x14 ... 0x17 | Reserved | |||||||||
| 0x18 | AUXDATA0 | 7:0 | AUXDATA0[7:0] | |||||||
| 0x19 | AUXDATA1 | 7:0 | AUXDATA1[7:0] | |||||||
| 0x1A | AUXDATA2 | 7:0 | AUXDATA2[7:0] | |||||||
0x1B ... 0x1E | Reserved | |||||||||
| 0x1F | DBGCTRL | 7:0 | DBGRUN | |||||||