Atmel ATSAML22G16A-AUT, Manual

Page: 27 / 1231

7. I/O Multiplexing and Considerations
7.1. Multiplexed Signals
Each pin is by default controlled by the PORT as a general purpose I/O and alternatively it can be
assigned a different peripheral functions. To enable a peripheral function on a pin, the Peripheral
Multiplexer Enable bit in the Pin Configuration register corresponding to that pin (PINCFGn.PMUXEN, n =
0-31) in the PORT must be written to '1'. The selection of peripheral function A to I is done by writing to
the Peripheral Multiplexing Odd and Even bits in the Peripheral Multiplexing register (PMUXn.PMUXE/O)
of the PORT.
This table describes the peripheral signals multiplexed to the PORT I/O pins.
Table 7-1. PORT Function Multiplexing
Function - A B C D E F H I
Type L22G(5) L22J L22N Pad Name EIC ANAREF ADC AC PTC SLCD SERCOM(6) SERCOM(6) TC/TCC TCC/RTC COM/RTC AC/
GCLK/
SUPC CCL
Battery backup 1 1 1 PA00 EIC/EXTINT[0] SERCOM1/
PAD[0]
2 2 2 PA01 EIC/EXTINT[1] SERCOM1/
PAD[1]
3 PC00 EIC/EXTINT[8] ADC/
AIN[16] RTC/IN[3]
4 PC01 EIC/EXTINT[9] ADC/
AIN[17] RTC/IN[4]
5 PC02 EIC/EXTINT[10] ADC/
AIN[18] PTC/
XY[6]
6 PC03 EIC/EXTINT[11] ADC/
AIN[19] PTC/
XY[7]
3 3 7 PA02 EIC/EXTINT[2] ADC/
VREFB
ADC/
AIN[0] AC/
AIN[0] PTC/
XY[8] RTC/IN[2]
4 4 8 PA03 EIC/EXTINT[3] ADC/
VREFA
ADC/
AIN[1] AC/
AIN[1] PTC/
XY[9]
5 9 PB04 EIC/EXTINT[4] ADC/
AIN[12] AC/
AIN[2] PTC/
XY[10]
6 10 PB05 EIC/EXTINT[5] ADC/
AIN[13] AC/
AIN[3] PTC/
XY[11]
9 13 PB06 EIC/EXTINT[6] ADC/
AIN[14] PTC/
XY[12] SLCD/
LP[0] CCL/IN[6]
10 14 PB07 EIC/EXTINT[7] ADC/
AIN[15] PTC/
XY[13] SLCD/
LP[1] CCL/IN[7]
7 11 15 PB08 EIC/EXTINT[8] ADC/
AIN[2] PTC/
XY[14] SLCD/
LP[2] SERCOM3/
PAD[0] TC/0/
WO[0] CCL/IN[8]
8 12 16 PB09 EIC/EXTINT[9] ADC/
AIN[3] PTC/
XY[15] SLCD/
LP[3] SERCOM3/
PAD[1] TC/0/
WO[1] CCL/
OUT[2]
9 13 17 PA04 EIC/EXTINT[4] ADC/
AIN[4] PTC/
X[24] SLCD/
LP[4] SERCOM0/
PAD[0] TCC/
WO[0] CCL/IN[0]
10 14 18 PA05 EIC/EXTINT[5] ADC/
AIN[5] PTC/
X[25] SLCD/
LP[5] SERCOM0/
PAD[1] TCC/
WO[1] CCL/IN[1]
11 15 19 PA06 EIC/EXTINT[6] ADC/
AIN[6] PTC/
X[26] SLCD/
LP[6] SERCOM0/
PAD[2] CCL/IN[2]
12 16 20 PA07 EIC/EXTINT[7] ADC/
AIN[7] PTC/
X[27] SLCD/
LP[7] SERCOM0/
PAD[3] CCL/
OUT[0]
21 PC05 EIC/EXTINT[13] PTC/
XY[4] SLCD/
LP[8]
22 PC06 EIC/EXTINT[14] PTC/
XY[5] SLCD/
LP[9]
23 PC07 EIC/EXTINT[15] SLCD/
LP[10]
13 17 26 PA08 EIC/NMI PTC/
XY[3] SLCD/
LP[11] SERCOM0/
PAD[0] SERCOM4/
PAD[0] TCC/
WO[0] CCL/IN[3]
14 18 27 PA09 EIC/EXTINT[9] PTC/
XY[2] SLCD/
LP[12] SERCOM0/
PAD[1] SERCOM4/
PAD[1] TCC/
WO[1] CCL/IN[4]
15 19 28 PA10 EIC/EXTINT[10] PTC/
XY[1] SLCD/
LP[13] SERCOM0/
PAD[2] SERCOM4/
PAD[2] TCC/
WO[2] GCLK/
IO[4] CCL/IN[5]
16 20 29 PA11 EIC/EXTINT[11] PTC/
XY[0] SLCD/
LP[14] SERCOM0/
PAD[3] SERCOM4/
PAD[3] TCC/
WO[3] CCL/
OUT[1]
Atmel SAM L22G / L22J / L22N [DATASHEET]
Atmel-42402E-SAM L22G / L22J / L22N_Datasheet_Complete-07/2016
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