Data Sheet

22
[DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
19 23 PB10 VDDIO EXTINT[10]
SERCOM4/
PAD[2]
TC5/WO[0]
TCC0/
WO[4]
I2S/
MCK[1]
GCLK_IO[4]
20 24 PB11 VDDIO EXTINT[11]
SERCOM4/
PAD[3]
TC5/WO[1]
TCC0/
WO[5]
I2S/
SCK[1]
GCLK_IO[5]
25 PB12 VDDIO I
2
C EXTINT[12] X[12]
SERCOM4/
PAD[0]
TC4/WO[0]
TCC0/
WO[6]
I2S/FS[1] GCLK_IO[6]
26 PB13 VDDIO I
2
C EXTINT[13] X[13]
SERCOM4/
PAD[1]
TC4/WO[1]
TCC0/
WO[7]
GCLK_IO[7]
27 PB14 VDDIO EXTINT[14] X[14]
SERCOM4/
PAD[2]
TC5/WO[0] GCLK_IO[0]
28 PB15 VDDIO EXTINT[15] X[15]
SERCOM4/
PAD[3]
TC5/WO[1] GCLK_IO[1]
21 29 PA12 VDDIO I
2
C EXTINT[12]
SERCOM2/
PAD[0]
SERCOM4/
PAD[0]
TCC2/WO[0]
TCC0/
WO[6]
AC/CMP[0]
22 30 PA13 VDDIO I
2
C EXTINT[13]
SERCOM2/
PAD[1]
SERCOM4/
PAD[1]
TCC2/WO[1]
TCC0/
WO[7]
AC/CMP[1]
15 23 31 PA14 VDDIO EXTINT[14]
SERCOM2/
PAD[2]
SERCOM4/
PAD[2]
TC3/WO[0]
TCC0/
WO[4]
GCLK_IO[0]
16 24 32 PA15 VDDIO EXTINT[15]
SERCOM2/
PAD[3]
SERCOM4/
PAD[3]
TC3/WO[1]
TCC0/
WO[5]
GCLK_IO[1]
17 25 35 PA16 VDDIO I
2
C EXTINT[0] X[4]
SERCOM1/
PAD[0]
SERCOM3/
PAD[0]
TCC2/WO[0] TCC0/WO[6] GCLK_IO[2]
18 26 36 PA17 VDDIO I
2
C EXTINT[1] X[5]
SERCOM1/
PAD[1]
SERCOM3/
PAD[1]
TCC2/WO[1] TCC0/WO[7] GCLK_IO[3]
19 27 37 PA18 VDDIO EXTINT[2] X[6]
SERCOM1/
PAD[2]
SERCOM3/
PAD[2]
TC3/WO[0]
TCC0/
WO[2]
AC/CMP[0]
20 28 38 PA19 VDDIO EXTINT[3] X[7]
SERCOM1/
PAD[3]
SERCOM3/
PAD[3]
TC3/WO[1]
TCC0/
WO[3]
I2S/SD[0] AC/CMP[1]
39 PB16 VDDIO I
2
C EXTINT[0]
SERCOM5/
PAD[0]
TC6/WO[0]
TCC0/
WO[4]
I2S/SD[1] GCLK_IO[2]
40 PB17 VDDIO I
2
C EXTINT[1]
SERCOM5/
PAD[1]
TC6/WO[1]
TCC0/
WO[5]
I2S/
MCK[0]
GCLK_IO[3]
29 41 PA20 VDDIO EXTINT[4] X[8]
SERCOM5/
PAD[2]
SERCOM3/
PAD[2]
TC7/WO[0]
TCC0/
WO[6]
I2S/
SCK[0]
GCLK_IO[4]
30 42 PA21 VDDIO EXTINT[5] X[9]
SERCOM5/
PAD[3]
SERCOM3/
PAD[3]
TC7/WO[1]
TCC0/
WO[7]
I2S/FS[0] GCLK_IO[5]
21 31 43 PA22 VDDIO I
2
C EXTINT[6] X[10]
SERCOM3/
PAD[0]
SERCOM5/
PAD[0]
TC4/WO[0]
TCC0/
WO[4]
GCLK_IO[6]
22 32 44 PA23 VDDIO I
2
C EXTINT[7] X[11]
SERCOM3/
PAD[1]
SERCOM5/
PAD[1]
TC4/WO[1]
TCC0/
WO[5]
USB/SOF
1kHz
GCLK_IO[7]
23 33 45 PA24 VDDIO EXTINT[12]
SERCOM3/
PAD[2]
SERCOM5/
PAD[2]
TC5/WO[0]
TCC1/
WO[2]
USB/DM
24 34 46 PA25 VDDIO EXTINT[13]
SERCOM3/
PAD[3]
SERCOM5/
PAD[3]
TC5/WO[1]
TCC1/
WO[3]
USB/DP
Table 6-1. PORT Function Multiplexing (Continued)
Pin
(1)
I/O Pin Supply Type
A B
(2)(3)
C D E F G H
SAMD21E SAMD21GSAMD21J EIC REF ADC AC PTC DAC SERCOM
(2)(3)
SERCOM-
ALT
TC
(4)
/TCC TCC COM AC/GCLK