SAM7S256_14 Datasheet, PDF (360/775 Pages) ATMEL Corporation – ARM-based Flash MCU

31.2 Block Diagram
Figure 31-1. SAM7S512/256/128/64/321/161 USART Block Diagram
Peripheral DMA
Controller
Channel Channel
USART
AIC
USART
Interrupt
Receiver
Transmitter
PIO
Controller
PMC
MCK
MCK/DIV
DIV
SLCK
Modem
Signals
Control
Baud Rate
Generator
User Interface
APB
RXD
RTS
TXD
CTS
DTR
DSR
DCD
RI
SCK
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
360