Datasheet

16
[DATASHEET]
Atmel-42181C–SAM-D21_Datasheet–07/2014
Notes: 1. All analog pin functions are on peripheral function B. Peripheral function B must be selected to disable the digital control of the pin.
2. Only some pins can be used in SERCOM I
2
C mode. See the Type column for using a SERCOM pin in I
2
C mode. Refer to “Electrical Characteristics” on page 923 for details on the I
2
C pin
characteristics.
3. Note that TC6 and TC7 are not supported on the SAM D21G. Refer to “Configuration Summary” on page 3 for details.
4. This function is only activated in the presence of a debugger.
37 49 PB22 VDDIO EXTINT[6]
SERCOM5/
PAD[2]
TC7/WO[0] GCLK_IO[0]
38 50 PB23 VDDIO EXTINT[7]
SERCOM5/
PAD[3]
TC7/WO[1] GCLK_IO[1]
25 39 51 PA27 VDDIO EXTINT[15] GCLK_IO[0]
27 41 53 PA28 VDDIO EXTINT[8] GCLK_IO[0]
31 45 57 PA30 VDDIO EXTINT[10]
SERCOM1/
PAD[2]
TCC1/WO[0] SWCLK GCLK_IO[0]
32 46 58 PA31 VDDIO EXTINT[11]
SERCOM1/
PAD[3]
TCC1/WO[1] SWDIO
(4)
59 PB30 VDDIO I
2
C EXTINT[14]
SERCOM5/
PAD[0]
TCC0/WO[0]
TCC1/
WO[2]
60 PB31 VDDIO I
2
C EXTINT[15]
SERCOM5/
PAD[1]
TCC0/WO[1]
TCC1/
WO[3]
61 PB00 VDDANA EXTINT[0] AIN[8] Y[6]
SERCOM5/
PAD[2]
TC7/WO[0]
62 PB01 VDDANA EXTINT[1] AIN[9] Y[7]
SERCOM5/
PAD[3]
TC7/WO[1]
47 63 PB02 VDDANA EXTINT[2] AIN[10] Y[8]
SERCOM5/
PAD[0]
TC6/WO[0]
48 64 PB03 VDDANA EXTINT[3] AIN[11] Y[9]
SERCOM5/
PAD[1]
TC6/WO[1]
Table 6-1. PORT Function Multiplexing (Continued)
Pin
I/O Pin Supply Type
A B
(1)(2)
C D E F G H
SAMD21E SAMD21GSAMD21J EIC REF ADC AC PTC DAC SERCOM
(1)(2)
SERCOM-
ALT
TC
(3)
/TCC TCC COM AC/GCLK