AT32UC3A0512-CTUR(2009) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT32UC3A0512-CTUR
(Rev.:2009)

AVR®32 32-Bit Microcontroller

Atmel Corporation 

AT32UC3A

Table 5-1. Signal Description List

Signal Name

Function

Type

Active

Level Comments

External Bus Interface - HEBI

ADDR0 - ADDR23

Address Bus

Output

CAS

Column Signal

Output

Low

DATA0 - DATA15

Data Bus

I/O

NCS0 - NCS3

Chip Select

Output

Low

NRD

Read Signal

Output

Low

NWAIT

External Wait Signal

Input

Low

NWE0

Write Enable 0

Output

Low

NWE1

Write Enable 1

Output

Low

NWE3

Write Enable 3

Output

Low

RAS

Row Signal

Output

Low

SDA10

SDRAM Address 10 Line

Output

SDCK

SDRAM Clock

Output

SDCKE

SDRAM Clock Enable

Output

SDCS0

SDRAM Chip Select

Output

Low

SDWE

SDRAM Write Enable

Output

Low

General Purpose Input/Output 2 - GPIOA, GPIOB, GPIOC

P0 - P31

Parallel I/O Controller GPIOA

I/O

P0 - P31

Parallel I/O Controller GPIOB

I/O

P0 - P5

Parallel I/O Controller GPIOC

I/O

P0 - P31

Parallel I/O Controller GPIOX

I/O

Serial Peripheral Interface - SPI0, SPI1

MISO

Master In Slave Out

I/O

MOSI

Master Out Slave In

I/O

NPCS0 - NPCS3

SPI Peripheral Chip Select

I/O

Low

SCK

Clock

Output

Synchronous Serial Controller - SSC

RX_CLOCK

SSC Receive Clock

I/O

10

32058H–AVR32–03/09

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