Datasheet

 2017 Microchip Technology Inc. DS60001516A-page 7
SAM9G20
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 - SDRAMC
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 –
Table 2-1: Signal Description List
Signal Name Function Type Active Level Comments