SAM-G53G_14 Datasheet, PDF (7/15 Pages) ATMEL Corporation – Atmel | SMART ARM-based Flash MCU

Table 3-1. Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Voltage
Reference
Reset/Test
NRST
Microcontroller Reset
I/O
Low
VDDIO
TST
Test Mode Select
Input
–
VDDIO
Universal Ansynchronous Receiver Transceiver - UARTx
URXDx
UART Receive Data
Input
–
–
UTXDx
UART Transmit Data
Output
–
–
PIO Controller - PIOA - PIOB
PA0 - PA24
Parallel I/O Controller A
I/O
–
VDDIO
PB0 - PB12
WKUP 0-15
SCK
TXD
RXD
RTS
CTS
TCLKx
TIOAx
TIOBx
MISO
MOSI
SPCK
NPCS0
NPCS1
Parallel I/O Controller B
I/O
Wake-up Pins
–
VDDIO
Wake-up Pin / External Interrupt
I/O
–
VDDIO
Universal Synchronous Asynchronous Receiver Transmitter USART
USART Serial Clock
I/O
–
–
USART Transmit Data
I/O
–
–
USART Receive Data
Input
–
–
USART Request To Send
Output
–
–
USART Clear To Send
Input
–
–
Timer/Counter - TCx
TC Channel x External Clock Input
Input
–
–
TC Channel x I/O Line A
I/O
–
–
TC Channel x I/O Line B
I/O
–
–
Serial Peripheral Interface - SPI
Master In Slave Out
I/O
–
–
Master Out Slave In
I/O
–
–
SPI Serial Clock
I/O
–
–
SPI Peripheral Chip Select 0
I/O
Low
–
SPI Peripheral Chip Select 1
Output
Low
–
Comments
Pull-up resistor
Pull-down resistor
–
–
Pulled-up input at
reset. No pull-down
for PA3/PA4/PA14.
Pulled-up input at
reset
Wake-up pins are
used also as External
Interrupt
–
–
–
–
–
–
–
–
–
–
High-speed pad
–
–
SAM G53G / SAM G53N [SUMMARY DATASHEET]
7
Atmel-11240DS-ATARM-SAM-G53G-SAM-G53N-Summary-Datasheet_17-Oct-14