ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 756
ATSAM3X4EA-AU
Manufacturer Part Number
ATSAM3X4EA-AU
Description
ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
Manufacturer
Atmel
Datasheet
1.ATSAM3X8EA-AU.pdf
(1467 pages)
Specifications of ATSAM3X4EA-AU
Rohs
yes
Core
ARM Cortex M3
Processor Series
SAM3X
Data Bus Width
32 bit
Maximum Clock Frequency
84 MHz
Program Memory Size
256 KB
Data Ram Size
64 KB
On-chip Adc
Yes
Operating Supply Voltage
2.4 V to 3.6 V
Operating Temperature Range
- 40 C to +85 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Factory Pack Quantity
60
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35.3
Figure 35-1. UART Functional Block Diagram
Table 35-1.
35.4
35.4.1
35.4.2
756
756
Pin Name
URXD
UTXD
Block Diagram
Product Dependencies
Management
SAM3X/A
SAM3X/A
Controller
I/O Lines
Power Management
Power
UART Pin Description
APB
Peripheral
Bridge
The UART pins are multiplexed with PIO lines. The programmer must first configure the corre-
sponding PIO Controller to enable I/O line operations of the UART.
Table 35-2.
The UART clock is controllable through the Power Management Controller. In this case, the pro-
grammer must first configure the PMC to enable the UART clock. Usually, the peripheral
identifier used for this purpose is 1.
Description
UART Receive Data
UART Transmit Data
Instance
UART
UART
MCK
I/O Lines
Baud Rate
Generator
UART
Peripheral DMA Controller
Signal
URXD
UTXD
Transmit
Interrupt
Receive
Control
Type
Input
Output
I/O Line
PA8
PA9
uart_irq
Parallel
Output
Input/
Peripheral
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
A
A
URXD
UTXD
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