34.9 Register Summary - USART


Offset	Name	Bit Pos.	7	6	5	4	3	2	1	0
0x00	CTRLA	31:24		DORD	CPOL	CMODE	FORM[3:0]
		23:16	SAMPA[1:0]		RXPO[1:0]				TXPO[1:0]
		15:8	SAMPR[2:0]					RXINV	TXINV	IBON
		7:0	RUNSTDBY			MODE[2:0]			ENABLE	SWRST
0x04	CTRLB	31:24							LINCMD[1:0]
		23:16	FIFOCLR[1:0]						RXEN	TXEN
		15:8			PMODE			ENC	SFDE	COLDEN
		7:0		SBMODE				CHSIZE[2:0]
0x08	CTRLC	31:24	TXTRHOLD[1:0]		RXTRHOLD[1:0]		FIFOEN		DATA32B[1:0]
		23:16		MAXITER[2:0]					DSNACK	INACK
		15:8					HDRDLY[1:0]		BRKLEN[1:0]
		7:0						GTIME[2:0]
0x0C	BAUD	15:8	BAUD[15:8]
0x0C	BAUD	7:0	BAUD[7:0]
0x0E	RXPL	7:0	RXPL[7:0]
0x0F ... 0x13	Reserved
0x14	INTENCLR	7:0	ERROR		RXBRK	CTSIC	RXS	RXC	TXC	DRE
0x15	Reserved
0x16	INTENSET	7:0	ERROR		RXBRK	CTSIC	RXS	RXC	TXC	DRE
0x17	Reserved
0x18	INTFLAG	7:0	ERROR		RXBRK	CTSIC	RXS	RXC	TXC	DRE
0x19	Reserved
0x1A	STATUS	15:8
0x1A	STATUS	7:0	ITER	TXE	COLL	ISF	CTS	BUFOVF	FERR	PERR
0x1C	SYNCBUSY	31:24
		23:16
		15:8
		7:0				LENGTH	RXERRCNT	CTRLB	ENABLE	SWRST
0x20	RXERRCNT	7:0
0x21	Reserved
0x22	LENGTH	15:8							LENEN[1:0]
0x22	LENGTH	7:0	LEN[7:0]
0x24 ... 0x27	Reserved
0x28	DATA	31:24	DATA[31:24]
		23:16	DATA[23:16]
		15:8	DATA[15:8]
		7:0	DATA[7:0]
0x2C ... 0x2F	Reserved
0x30	DBGCTRL	7:0								DBGSTOP
0x31 ... 0x33	Reserved
0x34	FIFOSPACE	15:8				RXSPACE[4:0]
0x34	FIFOSPACE	7:0				TXSPACE[4:0]
0x36	FIFOPTR	15:8					CPURDPTR[3:0]
0x36	FIFOPTR	7:0					CPUWRPTR[3:0]