AT91SAM9R64(2008) Просмотр технического описания (PDF) - Atmel Corporation

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Компоненты Описание

производитель

AT91SAM9R64
(Rev.:2008)

AT91 ARM Thumb Microcontrollers

Atmel Corporation 

AT91SAM9R64/RL64 Preliminary

Table 3-1. Signal Description List (Continued)

Signal Name

Function

Active

Type Level Comments

CFCS0 - CFCS1

CompactFlash Chip Select Lines

Output Low CFCS1 not present on AT91SAM9R64.

NAND Flash Support

NANDCS

NAND Flash Chip Select

Output Low

NANDOE

NAND Flash Output Enable

Output Low

NANDWE

NAND Flash Write Enable

Output Low

SDRAM Controller

SDCK

SDRAM Clock

Output

SDCKE

SDRAM Clock Enable

Output High

SDCS

SDRAM Controller Chip Select

Output Low

BA0 - BA1

Bank Select

Output

SDWE

SDRAM Write Enable

Output Low

RAS - CAS

Row and Column Signal

Output Low

SDA10

SDRAM Address 10 Line

Output

Multimedia Card Interface MCI

CK

Multimedia Card Clock

I/O

CDA

Multimedia Card Slot A Command

I/O

DA0 - DA3

Multimedia Card Slot A Data

I/O

Universal Synchronous Asynchronous Receiver Transmitter USARTx

SCKx

USARTx Serial Clock

I/O

SCKx not present on AT91SAM9R64.

TXDx

USARTx Transmit Data

I/O

RXDx

USARTx Receive Data

Input

RTSx

USARTx Request To Send

Output

RTS0, RTS2, RTS3 not present on

AT91SAM9R64.

CTSx

USARTx Clear To Send

Input

CTS0, CTS2, CTS3 not present on

AT91SAM9R64.

DTR0

USART0 Data Terminal Ready

I/O

Not present on AT91SAM9R64.

DSR0

USART0 Data Set Ready

Input

Not present on AT91SAM9R64.

DCD0

USART0 Data Carrier Detect

Output

Not present on AT91SAM9R64.

RI0

USART0 Ring Indicator

Input

Not present on AT91SAM9R64.

Synchronous Serial Controller - SSCx

TD0 - TD1

SSC Transmit Data

Output

TD1 not present on AT91SAM9R64.

RD0 - RD1

SSC Receive Data

Input

RD1 not present on AT91SAM9R64.

TK0 - TK1

SSC Transmit Clock

I/O

TK1 not present on AT91SAM9R64.

RK0 - RK1

SSC Receive Clock

I/O

RK1 not present on AT91SAM9R64.

TF0 - TF1

SSC Transmit Frame Sync

I/O

TF1 not present on AT91SAM9R64.

RF0 - RF1

SSC Receive Frame Sync

I/O

RF1 not present on AT91SAM9R64.

9

6289A–ATARM–15-Jan-08

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