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AT91SAM9G20B-CU Datasheet(PDF) 7 Page - ATMEL Corporation

Part # AT91SAM9G20B-CU
Description  AT91 ARM Thumb Microcontrollers
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT91SAM9G20B-CU Datasheet(HTML) 7 Page - ATMEL Corporation

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7
6384D–ATARM–04-May-09
AT91SAM9G20 Preliminary
NAND Flash Support
NANDCS
NAND Flash Chip Select
Output
Low
NANDOE
NAND Flash Output Enable
Output
Low
NANDWE
NAND Flash Write Enable
Output
Low
NANDALE
NAND Flash Address Latch Enable
Output
Low
NANDCLE
NAND Flash Command Latch 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
MCCK
Multimedia Card Clock
Output
MCCDA
Multimedia Card Slot A Command
I/O
MCDA0 - MCDA3
Multimedia Card Slot A Data
I/O
MCCDB
Multimedia Card Slot B Command
I/O
MCDB0 - MCDB3
Multimedia Card Slot B Data
I/O
Universal Synchronous Asynchronous Receiver Transmitter USARTx
SCKx
USARTx Serial Clock
I/O
TXDx
USARTx Transmit Data
I/O
RXDx
USARTx Receive Data
Input
RTSx
USARTx Request To Send
Output
CTSx
USARTx Clear To Send
Input
DTR0
USART0 Data Terminal Ready
Output
DSR0
USART0 Data Set Ready
Input
DCD0
USART0 Data Carrier Detect
Input
RI0
USART0 Ring Indicator
Input
Synchronous Serial Controller - SSC
TD
SSC Transmit Data
Output
RD
SSC Receive Data
Input
TK
SSC Transmit Clock
I/O
RK
SSC Receive Clock
I/O
TF
SSC Transmit Frame Sync
I/O
RF
SSC Receive Frame Sync
I/O
Table 3-1.
Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Comments


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