6
6042DS–ATARM–14-Dec-06
AT91SAM7A3
AIC
IRQ0 - IRQ3 External Interrupt Inputs Input
FIQ Fast Interrupt Input Input
PIO
PA0 - PA31 Parallel IO Controller A I/O Pulled-up input at reset
PB0 - PB29 Parallel IO Controller B I/O Pulled-up input at reset
Multimedia Card Interface
MCCK Multimedia Card Clock Output
MCCDA Multimedia Card A Command I/O
MCDA0 - MCDA3 Multimedia Card A Data I/O
USB Device Port
DDM USB Device Port Data - Analog
DDP USB Device Port Data + Analog
USART
SCK0 - SCK1 - SCK2 Serial Clock I/O
TXD0 - TXD1 - TXD2 Transmit Data I/O
RXD0 - RXD1 - RXD2 Receive Data Input
RTS0 - RTS1 - RTS2 Request To Send Output
CTS0 - CTS1 - CTS2 Clear To Send Input
Synchronous Serial Controller
TD0 - TD1 Transmit Data Output
RD0 - RD1 Receive Data Input
TK0 - TK1 Transmit Clock I/O
RK0 - RK1 Receive Clock I/O
TF0 - TF1 Transmit Frame Sync I/O
RF0 - RF1 Receive Frame Sync I/O
Timer/Counter
TCLK0 - TCLK8 External Clock Input Input
TIOA0 - TIOA8 I/O Line A I/O
TIOB0 - TIOB8 I/O Line B I/O
PWM Controller
PWM0 - PWM7 PWM Channels Output
Table 3-1. Signal Description (Continued)
Signal Name Function Type
Active
Level Comments
