at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 7

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

Table 3-1.
6384B–ATARM–15-Dec-08
Signal Name
NANDCS
NANDOE
NANDWE
NANDALE
NANDCLE
SDCK
SDCKE
SDCS
BA0 - BA1
SDWE
RAS - CAS
SDA10
MCCK
MCCDA
MCDA0 - MCDA3
MCCDB
MCDB0 - MCDB3
SCKx
TXDx
RXDx
RTSx
CTSx
DTR0
DSR0
DCD0
RI0
TD
RD
TK
RK
TF
RF
Signal Description List (Continued)
Universal Synchronous Asynchronous Receiver Transmitter USARTx
Function
NAND Flash Chip Select
NAND Flash Output Enable
NAND Flash Write Enable
NAND Flash Address Latch Enable
NAND Flash Command Latch Enable
SDRAM Clock
SDRAM Clock Enable
SDRAM Controller Chip Select
Bank Select
SDRAM Write Enable
Row and Column Signal
SDRAM Address 10 Line
Multimedia Card Clock
Multimedia Card Slot A Command
Multimedia Card Slot A Data
Multimedia Card Slot B Command
Multimedia Card Slot B Data
USARTx Serial Clock
USARTx Transmit Data
USARTx Receive Data
USARTx Request To Send
USARTx Clear To Send
USART0 Data Terminal Ready
USART0 Data Set Ready
USART0 Data Carrier Detect
USART0 Ring Indicator
SSC Transmit Data
SSC Receive Data
SSC Transmit Clock
SSC Receive Clock
SSC Transmit Frame Sync
SSC Receive Frame Sync
Synchronous Serial Controller - SSC
Multimedia Card Interface MCI
NAND Flash Support
SDRAM Controller
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
AT91SAM9G20 Preliminary
Type
Input
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Active
Level
High
Low
Low
Low
Low
Low
Low
Low
Low
Comments
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