SAM3U Datasheet, PDF (7/59 Pages) ATMEL Corporation – AT91SAM ARM-based Flash MCU

SAM3U Series
Table 3-1. Signal Description List (Continued)
Signal Name
Function
Type
Active
Level
Voltage
Reference Comments
High Speed Multimedia Card Interface - HSMCI
CK
Multimedia Card Clock
I/O
CDA
Multimedia Card Slot A Command
I/O
DA0 - DA7
Multimedia Card Slot A 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
I/O
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
Timer/Counter - TC
TCLKx
TC Channel x External Clock Input
Input
TIOAx
TC Channel x I/O Line A
I/O
TIOBx
TC Channel x I/O Line B
I/O
Pulse Width Modulation Controller- PWMC
PWMHx
PWM Waveform Output High for channel x
Output
PWMLx
PWM Waveform Output Low for channel x
Output
only output in
complementary mode
when dead time
insertion is enabled
PWMFI0-2
PWM Fault Input
Input
Serial Peripheral Interface - SPI
MISO
Master In Slave Out
I/O
MOSI
Master Out Slave In
I/O
SPCK
SPI Serial Clock
I/O
NPCS0
SPI Peripheral Chip Select 0
I/O
Low
NPCS1 - NPCS3 SPI Peripheral Chip Select
Output
Low
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6430ES–ATARM–22-Aug-11