7
SAM G53G / SAM G53N [SUMMARY DATASHEET]
Atmel-11240ES-ATARM-SAM-G53G-SAM-G53N-Summary Datasheet_27-Jul-15
Reset/Test
NRST Microcontroller Reset I/O Low VDDIO Pull-up resistor
TST Test Mode Select Input – VDDIO Pull-down resistor
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
Pulled-up input at
reset. No pull-down
for PA3/PA4/PA14.
PB0 - PB12 Parallel I/O Controller B I/O – VDDIO
Pulled-up input at
reset
Wake-up Pins
WKUP 0-15 Wake-up Pin / External Interrupt I/O – VDDIO
Wake-up pins are
used also as External
Interrupt
Universal Synchronous Asynchronous Receiver Transmitter USART
SCK USART Serial Clock I/O – – –
TXD USART Transmit Data I/O – – –
RXD USART Receive Data Input – – –
RTS USART Request To Send Output – – –
CTS USART Clear To Send Input – – –
Timer/Counter - TCx
TCLKx TC Channel x External Clock Input Input – – –
TIOAx TC Channel x I/O Line A I/O – – –
TIOBx TC Channel x I/O Line B I/O – – –
Serial Peripheral Interface - SPI
MISO Master In Slave Out I/O – – –
MOSI Master Out Slave In I/O – – –
SPCK SPI Serial Clock I/O – – High-speed pad
NPCS0 SPI Peripheral Chip Select 0 I/O Low – –
NPCS1 SPI Peripheral Chip Select 1 Output Low – –
Table 3-1. Signal Description List (Continued)
Signal Name Function Type
Active
Level
Voltage
Reference Comments
