AT91SAM9G45(2009) Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

AT91SAM9G45
(Rev.:2009)

AT91 ARM Thumb-based Microcontrollers

Atmel Corporation 

AT91SAM9G45

Table 3-1. Signal Description List (Continued)

Signal Name

Function

Type

Active Reference

Level

Voltage Comments

CFCS0 -CFCS1 CompactFlash Chip Select Lines

Output

Low

VDDIOM1

NAND Flash Support

NANDCS

NAND Flash Chip Select

Output

Low

VDDIOM1

NANDOE

NAND Flash Output Enable

Output

Low

VDDIOM1

NANDWE

NAND Flash Write Enable

Output

Low

VDDIOM1

DDR2/SDRAM/LPDDR Controller

SDCK,#SDCK DDR2/SDRAM differential clock

Output

VDDIOM1

SDCKE

DDR2/SDRAM Clock Enable

Output

High

VDDIOM1

SDCS

DDR2/SDRAM Controller Chip Select Output

Low

VDDIOM1

BA0 - BA1

Bank Select

Output

VDDIOM1

SDWE

DDR2/SDRAM Write Enable

Output

Low

VDDIOM1

RAS - CAS

Row and Column Signal

Output

Low

VDDIOM1

SDA10

SDRAM Address 10 Line

Output

VDDIOM1

DQS[0..1]

Data Strobe

Output

VDDIOM1

DQM[0..3]

Write Data Mask

Output

VDDIOM1

MCIx_CK

MCIx_CDA

High Speed Multimedia Card Interface - HSMCIx

Multimedia Card Clock

I/O

(1)

Multimedia Card Slot A Command

I/O

(1)

MCIx_DA0 -

MCIx_DA7

Multimedia Card Slot A Data

I/O

(1)

SCKx

TXDx

RXDx

RTSx

CTSx

Universal Synchronous Asynchronous Receiver Transmitter - USARTx

USARTx Serial Clock

I/O

(1)

USARTx Transmit Data

Output

(1)

USARTx Receive Data

Input

(1)

USARTx Request To Send

Output

(1)

USARTx Clear To Send

Input

(1)

TDx

RDx

TKx

RKx

TFx

RFx

Synchronous Serial Controller - SSCx

SSC Transmit Data

Output

(1)

SSC Receive Data

Input

(1)

SSC Transmit Clock

I/O

(1)

SSC Receive Clock

I/O

(1)

SSC Transmit Frame Sync

I/O

(1)

SSC Receive Frame Sync

I/O

(1)

7

6438D–ATARM–13-Oct-09

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