SAM4S Просмотр технического описания (PDF) - Atmel Corporation

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SAM4S

AT91SAM ARM-based Flash MCU

Atmel Corporation 

SAM4S Series [Preliminary]

Table 3-1. Signal Description List (Continued)

Signal Name

Function

Type

Flash Memory

Active Voltage

Level reference

ERASE

Flash and NVM Configuration Bits Erase

Command

Input

High

VDDIO

NRST

TST

URXDx

UTXDx

PA0 - PA31

PB0 - PB14

PC0 - PC31

PIODC0-PIODC7

PIODCCLK

PIODCEN1-2

D0 - D7

A0 - A23

NWAIT

NCS0 - NCS3

NRD

NWE

NANDOE

NANDWE

MCCK

MCCDA

MCDA0 - MCDA3

Reset/Test

Synchronous Microcontroller Reset

Test Select

I/O

Input

Low

VDDIO

Universal Asynchronous Receiver Transceiver - UARTx

UART Receive Data

Input

UART Transmit Data

Output

PIO Controller - PIOA - PIOB - PIOC

Parallel IO Controller A

I/O

Parallel IO Controller B

I/O

VDDIO

Parallel IO Controller C

I/O

PIO Controller - Parallel Capture Mode

Parallel Capture Mode Data

Input

Parallel Capture Mode Clock

Input

VDDIO

Parallel Capture Mode Enable

Input

External Bus Interface

Data Bus

I/O

Address Bus

Output

External Wait Signal

Input

Low

Static Memory Controller - SMC

Chip Select Lines

Output

Low

Read Signal

Output

Low

Write Enable

Output

Low

NAND Flash Logic

NAND Flash Output Enable

Output

Low

NAND Flash Write Enable

Output

Low

High Speed Multimedia Card Interface - HSMCI

Multimedia Card Clock

I/O

Multimedia Card Slot A Command

I/O

Multimedia Card Slot A Data

I/O

Comments

Reset State:

- Erase Input

- Internal pull-down enabled

- Schmitt Trigger enabled(1)

Permanent Internal

pull-up

Permanent Internal

pull-down

Reset State:

- PIO or System IOs(2)

- Internal pull-up enabled

- Schmitt Trigger enabled(1)

9

11100BS–ATARM–31-Jul-12

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