Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
844
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
41.3
Block Diagram
Figure 41-1. UART Functional Block Diagram
Table 41-1. UART Pin Description
Pin Name
Description
Type
URXD
UART Receive Data
Input
UTXD
UART Transmit Data
Output
DMA Controller
Baud Rate
Generator
Transmit
Receive
Interrupt
Control
Parallel
Input/
Output
UTXD
URXD
Power
Management
Controller
MCK
uart_irq
APB
UAR T
Peripheral
Bridge