SAM7X128_14 Datasheet, PDF (293/662 Pages) ATMEL Corporation – ARM-based Flash MCU

30.3 Application Block Diagram
Figure 30-2. Application Block Diagram
PPP
Modem
Driver
Serial
Driver
Field Bus
Driver
EMV
Driver
USART
IrLAP
IrDA
Driver
RS232
Drivers
Modem
PSTN
RS232
Drivers
Serial
Port
RS485
Drivers
Differential
Bus
Smart
Card
Slot
30.4 I/O Lines Description
Table 30-1.
Name
SCK
TXD
RXD
RI
DSR
DCD
DTR
CTS
RTS
I/O Line Description
Description
Serial Clock
Transmit Serial Data
Receive Serial Data
Ring Indicator
Data Set Ready
Data Carrier Detect
Data Terminal Ready
Clear to Send
Request to Send
IrDA
Transceivers
Type
I/O
I/O
Input
Input
Input
Input
Output
Input
Output
Active Level
Low
Low
Low
Low
Low
Low
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
293