Data Sheet

591
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
28.8 Register Summary
Table 28-5. Register Summary
Offset Name
Bit
Pos.
0x00 CTRLA 7:0 SEREN1 SEREN0 CKEN1 CKEN0 ENABLE SWRST
0x01
...
0x03
Reserved
0x04
CLKCTRL0
7:0 BITDELAY FSWIDTH[1:0] NBSLOTS[2:0] SLOTSIZE[1:0]
0x05 15:8
SCKSEL FSINV FSSEL
0x06 23:16 MCKDIV[4:0] MCKEN
MCKSEL
0x07 31:24 MCKOUTINV SCKOUTINV FSOUTINV MCKOUTDIV[4:0]
0x08
CLKCTRL1
7:0 BITDELAY FSWIDTH[1:0] NBSLOTS[2:0] SLOTSIZE[1:0]
0x09 15:8
SCKSEL FSINV FSSEL
0x0A 23:16 MCKDIV[4:0] MCKEN
MCKSEL
0x0B 31:24 MCKOUTINV SCKOUTINV FSOUTINV MCKOUTDIV[4:0]
0x0C
INTENCLR
7:0
RXOR1 RXOR0 RXRDY1 RXRDY0
0x0D 15:8
TXUR1 TXUR0 TXRDY1 TXRDY0
0x0E Reserved
0x0F Reserved
0x10
INTENSET
7:0 RXOR1 RXOR0 RXRDY1 RXRDY0
0x11 15:8
TXUR1 TXUR0 TXRDY1 TXRDY0
0x12 Reserved
0x13 Reserved
0x14
INTFLAG
7:0 RXOR1 RXOR0 RXRDY1 RXRDY0
0x15 15:8
TXUR1 TXUR0 TXRDY1 TXRDY0
0x16 Reserved
0x17 Reserved
0x18
SYNCBUSY
7:0 SEREN1 SEREN0 CKEN1 CKEN0 ENABLE SWRST
0x19 15:8
DATA1 DATA0
0x1A
...
0x1F
Reserved
0x20
SERCTRL0
7:0 SLOTADJ CLKSEL TXSAME TXDEFAULT[1:0] SERMODE[1:0]
0x21 15:8 BITREV EXTEND[1:0] WORDADJ
DATASIZE[2:0]
0x22 23:16 SLOTDIS7 SLOTDIS6 SLOTDIS5 SLOTDIS4 SLOTDIS3 SLOTDIS2 SLOTDIS1 SLOTDIS0
0x23 31:24
RXLOOP DMA MONO
0x24
SERCTRL1
7:0 SLOTADJ
CLKSEL TXSAME TXDEFAULT[1:0] SERMODE[1:0]
0x25 15:8 BITREV EXTEND[1:0] WORDADJ
DATASIZE[2:0]
0x26 23:16 SLOTDIS7 SLOTDIS6 SLOTDIS5 SLOTDIS4 SLOTDIS3 SLOTDIS2 SLOTDIS1 SLOTDIS0
0x27 31:24
RXLOOP DMA MONO
0x28
...
0x2F
Reserved