ATSAM3U1C 查看數據表（PDF） - Atmel Corporation

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ATSAM3U1C

AT91SAM ARM-based Flash MCU

Atmel Corporation 

SAM3U Series

The Peripheral DMA Controller handles transfer requests from the channel according to the fol-

lowing priorities (Low to High priorities):

Table 7-5. Peripheral DMA Controller

Instance name

Channel T/R

TWI1

Transmit

TWI0

Transmit

PWM

Transmit

UART

Transmit

USART3

Transmit

USART2

Transmit

USART1

Transmit

USART0

Transmit

TWI0

Receive

TWI1

Receive

UART

Receive

USART3

Receive

USART2

Receive

USART1

Receive

USART0

Receive

ADC

Receive

ADC12B

Receive

7.8 Debug and Test Features

• Debug access to all memory and registers in the system, including Cortex-M3 register bank

when the core is running, halted, or held in reset.

• Serial Wire Debug Port (SW-DP) and Serial Wire JTAG Debug Port (SWJ-DP) debug access

• Flash Patch and Breakpoint (FPB) unit for implementing break points and code patches

• Data Watchpoint and Trace (DWT) unit for implementing watch points, data tracing, and

system profiling

• Instrumentation Trace Macrocell (ITM) for support of printf style debugging

• IEEE® 1149.1 JTAG Boundary-scan on all digital pins

29

6430F–ATARM–21-Feb-12

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