
16
32117DS–AVR-01/12
AT32UC3C
Note:
See
Section 3.3 for a description of the various peripheral signals.
3.2.2
Peripheral Functions
Each GPIO line can be assigned to one of several peripheral functions. The following table
describes how the various peripheral functions are selected. The last listed function has priority
in case multiple functions are enabled on the same pin.
124
PD15
111
VDDIO3
x1/x2
TC0 - A0
USART3 -
TXD
EBI -
ADDR[11]
125
PD16
112
VDDIO3
x1/x2
TC0 - B0
USART3 -
RXD
EBI -
ADDR[12]
126
PD17
113
VDDIO3
x1/x2
TC0 - A1
USART3 -
CTS
EBI -
ADDR[13]
USART3 -
CLK
127
PD18
114
VDDIO3
x1/x2
TC0 - B1
USART3 -
RTS
EBI -
ADDR[14]
128
PD19
115
VDDIO3
x1/x2
TC0 - A2
EBI -
ADDR[15]
129
PD20
116
VDDIO3
x1/x2
TC0 - B2
EBI -
ADDR[16]
57
88
130
PD21
117
VDDIO3
x1/x2
USART3 -
TXD
EIC -
EXTINT[0]
EBI -
ADDR[17]
QDEC1 -
QEPI
89
131
PD22
118
VDDIO1
x1/x2
USART3 -
RXD
TC0 - A2
EBI -
ADDR[18]
SCIF -
GCLK[0]
90
132
PD23
119
VDDIO1
x1/x2
USART3 -
CTS
USART3 -
CLK
EBI -
ADDR[19]
QDEC1 -
QEPA
91
133
PD24
120
VDDIO1
x1/x2
USART3 -
RTS
EIC -
EXTINT[8]
EBI -
NWE1
QDEC1 -
QEPB
134
PD25
121
VDDIO1
x1/x2
TC0 -
CLK0
USBC - ID
EBI -
NWE0
USART4 -
CLK
135
PD26
122
VDDIO1
x1/x2
TC0 -
CLK1
USBC -
VBOF
EBI - NRD
58
92
136
PD27
123
VDDIO1
x1/x2
USART0 -
TXD
CANIF -
RXLINE[0]
EBI -
NCS[1]
TC0 - A0
MACB -
RX_ER
59
93
137
PD28
124
VDDIO1
x1/x2
USART0 -
RXD
CANIF -
TXLINE[0]
EBI -
NCS[2]
TC0 - B0
MACB -
RX_DV
60
94
138
PD29
125
VDDIO1
x1/x2
USART0 -
CTS
EIC -
EXTINT[6]
USART0 -
CLK
TC0 -
CLK0
MACB -
TX_CLK
61
95
139
PD30
126
VDDIO1
x1/x2
USART0 -
RTS
EIC -
EXTINT[3]
EBI -
NWAIT
TC0 - A1
MACB -
TX_EN
Table 3-1.
GPIO Controller Function Multiplexing
TQFP
/
QFN
64
TQFP
100
LQFP
144
PIN
G
P
I
O
Supply
Pin
Type
(1)
GPIO function
AB
CD
E
F
Table 3-2.
Peripheral Functions
Function
Description
GPIO Controller Function multiplexing
GPIO and GPIO peripheral selection A to F
Nexus OCD AUX port connections
OCD trace system