Atmel SAM4L Xplained Pro Evaluation Kit Atmel ATSAM4L-XPRO ATSAM4L-XPRO Data Sheet
Product codes
ATSAM4L-XPRO
28
42023ES–SAM–07/2013
ATSAM4L8/L4/L2
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.
describes how the various peripheral functions are selected. The last listed function has priority
in case multiple functions are enabled on the same pin.
3.2.3
JTAG Port Connections
If the JTAG is enabled, the JTAG will take control over a number of pins, irrespectively of the I/O
Controller configuration.
Controller configuration.
44
44
PA24
24
LCDC
SPI
NPCS0
TWIMS0
TWCK
GLOC
OUT0
SCIF
GCLK IN1
LCDCA
SEG39
CATB
SENSE18
46
46
PA25
25
VDDIO
USBC
DM
USART2
RXD
CATB
SENSE19
47
47
PA26
26
VDDIO
USBC
DP
USART2
TXD
CATB
SENSE20
25
PA27
27
LCDA
SPI
MISO
IISC
ISCK
ABDACB
DAC0
GLOC
IN4
USART3
RTS
CATB
SENSE0
26
PA28
28
LCDA
SPI
MOSI
IISC
ISDI
ISDI
ABDACB
DACN0
GLOC
IN5
USART3
CTS
CATB
SENSE1
27
PA29
29
LCDA
SPI
SCK
IISC
IWS
IWS
ABDACB
DAC1
GLOC
IN6
USART3
CLK
CATB
SENSE2
30
PA30
30
LCDA
SPI
NPCS0
IISC
ISDO
ABDACB
DACN1
GLOC
IN7
USART3
RXD
CATB
SENSE3
31
PA31
31
LCDA
SPI
NPCS1
IISC
IMCK
ABDACB
CLK
GLOC
OUT1
USART3
TXD
CATB
DIS
Table 3-4.
48-pin GPIO Controller Function Multiplexing (Sheet 2 of 2)
AT
S
A
M
4
L
C
AT
S
A
M
4
L
S
Pin
GPIO
Supp
ly
GPIO Functions
A
B
C
D
E
F
G
Table 3-5.
Peripheral Functions
Function
Description
GPIO Controller Function multiplexing
GPIO and GPIO peripheral selection A to H
JTAG port connections
JTAG debug port
Oscillators
OSC0
Table 3-6.
JTAG Pinout
48-pin
Packages
64-pin
QFP/QFN
64-pin
WLSCP
100-pin
QFN
100-ball
VFBGA
Pin
Name
JTAG
Pin
10
10
E2
19
B3
PA03
TMS
43
59
H3
95
D6
PA23
TDO
44
60
H2
96
D10
PA24
TDI
9
9
F2
18
B4
TCK
TCK