AT32UC3A0512(2007) 데이터 시트보기 (PDF) - Atmel Corporation

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AT32UC3A0512
(Rev.:2007)

AVR®32 32-Bit Microcontroller

Atmel Corporation 

Table 4-1. Signal Description List

Signal Name

Function

Type

Active

Level Comments

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-SDCS1

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

RX_DATA

SSC Receive Data

Input

RX_FRAME_SYNC SSC Receive Frame Sync

I/O

TX_CLOCK

SSC Transmit Clock

I/O

9

32058AS–AVR32–03/07

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