AT91SAM9G45 datasheet(7/54 Pages) ATMEL

7 / 54 page

6438CS–ATARM–13-Oct-09

AT91SAM9G45

CFIOW

CompactFlash IO Write

Output

Low

VDDIOM1

CFRNW

CompactFlash Read Not Write

Output

VDDIOM1

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

High Speed Multimedia Card Interface - HSMCIx

MCIx_CK

Multimedia Card Clock

I/O

(1)

MCIx_CDA

Multimedia Card Slot A Command

I/O

(1)

MCIx_DA0 -

MCIx_DA7

Multimedia Card Slot A Data

I/O

(1)

Universal Synchronous Asynchronous Receiver Transmitter - USARTx

SCKx

USARTx Serial Clock

I/O

(1)

TXDx

USARTx Transmit Data

Output

(1)

RXDx

USARTx Receive Data

Input

(1)

RTSx

USARTx Request To Send

Output

(1)

CTSx

USARTx Clear To Send

Input

(1)

Synchronous Serial Controller - SSCx

TDx

SSC Transmit Data

Output

(1)

RDx

SSC Receive Data

Input

(1)

TKx

SSC Transmit Clock

I/O

(1)

RKx

SSC Receive Clock

I/O

(1)

TFx

SSC Transmit Frame Sync

I/O

(1)

RFx

SSC Receive Frame Sync

I/O

(1)

Table 3-1.

Signal Description List (Continued)

Signal Name

Function

Type

Active

Level

Reference

Voltage

Comments

AT91SAM9G45 Datasheet(PDF) 7 Page - ATMEL Corporation

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