ATSAM3S datasheet(7/65 Pages) ATMEL

7 / 65 page

6500AS–ATARM–11-Dec-09

SAM3S Summary

Universal Asynchronous Receiver Transmitter - UARTx

URXDx

UART Receive Data

Input

UTXDx

UART Transmit Data

Output

PIO Controller - PIOA - PIOB - PIOC

PA0 - PA31

Parallel IO Controller A

I/O

VDDIO

Reset State:

- PIO or System IOs(2)

- Internal pull-up enabled

- Schmitt Trigger enabled(1)

PB0 - PB14

Parallel IO Controller B

I/O

PC0 - PC31

Parallel IO Controller C

I/O

PIO Controller - Parallel Capture Mode (PIOA Only)

PIODC0-PIODC7

Parallel Capture Mode Data

Input

VDDIO

PIODCCLK

Parallel Capture Mode Clock

Input

PIODCEN1-2

Parallel Capture Mode Enable

Input

External Bus Interface

D0 - D7

Data Bus

I/O

A0 - A23

Address Bus

Output

NWAIT

External Wait Signal

Input

Low

Static Memory Controller - SMC

NCS0 - NCS3

Chip Select Lines

Output

Low

NRD

Read Signal

Output

Low

NWE

Write Enable

Output

Low

NAND Flash Logic

NANDOE

NAND Flash Output Enable

Output

Low

NANDWE

NAND Flash Write Enable

Output

Low

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

Input

RI1

USART1 Ring Indicator

Input

Table 3-1.

Signal Description List (Continued)

Signal Name

Function

Type

Active

Level

Voltage

reference

Comments

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