SAMA5D27
MBUS Signal
Pin No.
MBUS Signal
SAMA5D27
Function
PIO
PIO
Function
SPI clock
PC01
SPI_SPCK
4
4
UART_TX
PD24
UART transmit
SPI MISO
PC03
SPI_MISO
5
5
TWI_SCL
PD22
TWI clock
SPI MOSI
PC02
SPI_MOSI
6
6
TWI_SDA
PD21
TWI data
3.3VCC
–
3V3 Supply
7
7
5V Supply
_
5VDD
GROUND
–
GND
8
8
GND
_
GROUND
3.5.3
XPRO Interface
The SAMA5D2-PTC-EK board hosts two connectors to interface XPRO QT boards. The QTouch Xplained
Pro are extension boards that enable evaluation of Self-capacitance and Mutual capacitance modes
using the Peripheral Touch Controller (PTC). The boards show how easy it is to design a capacitive touch
board solution using the PTC without the need for any external components.
Nevertheless, the PTC IO pins available on XPRO connectors can be used as GPIO pins. Each of these
can be configured as an input or output pin according to the PIO peripheral functions.
The GPIO voltage levels depend on the VDDIOP level supported by the SAMA5D2, 3.3V in this case.
Figure 3-47. XPRO EXT1 Connector
PD16
PD26
PD17
PD11
PD13
PB9
PD15
7
C
P
6
C
P
PD18
PD17
PC0
PD14
PD12
VDD_3V3
GND_POWER
PTC_YLINE0
PTC_YLINE2
XPRO1_GPIO_PB9
PTC_YLINE4
PTC_YLINE6
PTC_YLINE1
PTC_YLINE3
PTC_YLINE5
PTC_YLINE7
PTC_YLINE6
XPRO1_GPIO_PD26
XPRO1_GPIO_PC0
XPRO_PC6
XPRO_PC7
R227
DNP
R226
0R
J11
Header 2X10
1
2
3
4
5
6
7
8
9
10
11
12
13
15
17
19
14
16
18
20
XPRO2_GPIO_PD31
R235
0R
SAMA5D2-PTC-EK
Board Components
©
2017 Microchip Technology Inc.
DS50002709A-page 43