Atmel Xplained Evaluation Board AT32UC3L0-XPLD AT32UC3L0-XPLD Data Sheet
Product codes
AT32UC3L0-XPLD
10
32099G–06/2011
AT32UC3L016/32/64
for a description of the various peripheral signals.
for a description of the electrical properties of the
pin types used.
3.2.1.1
TWI, 5V Tolerant, and SMBUS Pins
Some Normal I/O pins have TWI, 5V Tolerant, and SMBUS features. These features are avail-
able only when TWI functions or the PWMAOD function of the PWMA are selected on these
pins.
able only when TWI functions or the PWMAOD function of the PWMA are selected on these
pins.
40
PA19
19
VDDIO
Normal
I/O
ADCIFB
AD[5]
TC0
A2
TWIMS1
TWALM
PWMA
PWMA[19]
CAT
SYNC
CAT
CSA[10]
25
PA20
20
VDDIN
Normal
I/O
USART2
TXD
TC0
A1
GLOC
IN[3]
PWMA
PWMA[20]
SCIF
RC32OUT
CAT
CSA[12]
24
PA21
21
VDDIN
Normal
I/O (TWI,
5V
tolerant
SMBus)
USART2
RXD
TWIMS0
TWD
TC0
B1
ADCIFB
TRIGGER
PWMA
PWMA[21]
PWMA
PWMAOD[21]
SCIF
GCLK[0]
CAT
SMP
9
PA22
22
VDDIO
Normal
I/O
USART0
CTS
USART2
CLK
TC0
B2
CAT
SMP
PWMA
PWMA[22]
ACIFB
ACBN[2]
CAT
CSB[10]
6
PB00
32
VDDIO
Normal
I/O
USART3
TXD
ADCIFB
ADP[0]
SPI
NPCS[0]
TC0
A1
PWMA
PWMA[23]
ACIFB
ACAP[2]
TC1
A0
CAT
CSA[9]
16
PB01
33
VDDIO
High-
drive I/O
USART3
RXD
ADCIFB
ADP[1]
SPI
SCK
TC0
B1
PWMA
PWMA[24]
TC1
A1
CAT
CSB[9]
7
PB02
34
VDDIO
Normal
I/O
USART3
RTS
USART3
CLK
SPI
MISO
TC0
A2
PWMA
PWMA[25]
ACIFB
ACAN[2]
SCIF
GCLK[1]
CAT
CSB[11]
8
PB03
35
VDDIO
Normal
I/O
USART3
CTS
USART3
CLK
SPI
MOSI
TC0
B2
PWMA
PWMA[26]
ACIFB
ACBP[2]
TC1
A2
CAT
CSA[11]
21
PB04
36
VDDIN
Normal
I/O (TWI,
5V
tolerant
SMBus)
TC1
A0
USART1
RTS
USART1
CLK
TWIMS0
TWALM
PWMA
PWMA[27]
PWMA
PWMAOD[27]
TWIMS1
TWCK
CAT
CSA[14]
20
PB05
37
VDDIN
Normal
I/O (TWI,
5V
tolerant
SMBus)
TC1
B0
USART1
CTS
USART1
CLK
TWIMS0
TWCK
PWMA
PWMA[28]
PWMA
PWMAOD[28]
SCIF
GCLK[3]
CAT
CSB[14]
30
PB06
38
VDDIO
Normal
I/O
TC1
A1
USART3
TXD
ADCIFB
AD[6]
GLOC
IN[2]
PWMA
PWMA[29]
ACIFB
ACAN[3]
EIC
EXTINT[0]
CAT
CSB[13]
31
PB07
39
VDDIO
Normal
I/O
TC1
B1
USART3
RXD
ADCIFB
AD[7]
GLOC
IN[1]
PWMA
PWMA[30]
ACIFB
ACAP[3]
EIC
EXTINT[1]
CAT
CSA[13]
32
PB08
40
VDDIO
Normal
I/O
TC1
A2
USART3
RTS
ADCIFB
AD[8]
GLOC
IN[0]
PWMA
PWMA[31]
CAT
SYNC
EIC
EXTINT[2]
CAT
CSB[12]
29
PB09
41
VDDIO
Normal
I/O
TC1
B2
USART3
CTS
USART3
CLK
PWMA
PWMA[32]
ACIFB
ACBN[1]
EIC
EXTINT[3]
CAT
CSB[15]
23
PB10
42
VDDIN
Normal
I/O
TC1
CLK0
USART1
TXD
USART3
CLK
GLOC
OUT[1]
PWMA
PWMA[33]
EIC
EXTINT[4]
CAT
CSB[16]
44
PB11
43
VDDIO
Normal
I/O
TC1
CLK1
USART1
RXD
ADCIFB
TRIGGER
PWMA
PWMA[34]
CAT
VDIVEN
EIC
EXTINT[5]
CAT
CSA[16]
5
PB12
44
VDDIO
Normal
I/O
TC1
CLK2
TWIMS1
TWALM
CAT
SYNC
PWMA
PWMA[35]
ACIFB
ACBP[3]
SCIF
GCLK[4]
CAT
CSA[15]
Table 3-1.
GPIO Controller Function Multiplexing