Datasheet

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SAM4E [DATASHEET]

Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14

Reset/Test

NRST Synchronous Microcontroller Reset I/O Low

VDDIO

Permanent Internal

Pull-up

TST Test Select Input –

Permanent Internal

Pull-down

Wake-up

WKUP[15:0] Wake-up Inputs Input – VDDIO –

Universal Asynchronous Receiver Transceiver - UARTx

URXDx UART Receive Data Input – – –

UTXDx UART Transmit Data Output – – –

PIO Controller - PIOA - PIOB - PIOC- PIOD - PIOE

PA0 - PA31 Parallel IO Controller A I/O –

VDDIO

Reset State:

- PIO or System IOs

(4)

- Internal Pull-up enabled

- Schmitt Trigger enabled

(2)

PB0 - PB14 Parallel IO Controller B I/O –

PC0 - PC31 Parallel IO Controller C I/O –

PD0 - PD31 Parallel IO Controller D I/O – Reset State:

- PIO or System IOs

(4)

- Internal Pull-up enabled

- Schmitt Trigger enabled

(2)

PE0 - PE5 Parallel IO Controller E I/O –

PIO Controller - Parallel Capture Mode

PIODC0-PIODC7 Parallel Capture Mode Data Input –

VDDIO –PIODCCLK Parallel Capture Mode Clock Input –

PIODCEN1-2 Parallel Capture Mode Enable Input –

High Speed Multimedia Card Interface - HSMCI

MCCK Multimedia Card Clock I/O – – –

MCCDA Multimedia Card Slot A Command I/O – – –

MCDA0 - MCDA3 Multimedia Card Slot A Data I/O – – –

Universal Synchronous Asynchronous Receiver Transmitter USARTx

SCKx USARTx Serial Clock I/O – – –

TXDx USARTx Transmit Data I/O – – –

RXDx USARTx Receive Data Input – – –

RTSx USARTx Request To Send Output – – –

CTSx USARTx Clear To Send Input – – –

DTR1 USART1 Data Terminal Ready I/O – – –

DSR1 USART1 Data Set Ready Input – – –

DCD1 USART1 Data Carrier Detect Output – – –

RI1 USART1 Ring Indicator Input – – –

Timer/Counter - TC

TCLKx TC Channel x External Clock Input Input – – –

Table 3-1. Signal Description List

Signal Name Function Type

Active

Level

Voltage

Reference Comments