ATSAM3S4AA-MU Atmel, ATSAM3S4AA-MU Datasheet - Page 341
ATSAM3S4AA-MU
Manufacturer Part Number
ATSAM3S4AA-MU
Description
IC MCU 32BIT 256KB FLASH 48QFN
Manufacturer
Atmel
Series
SAM3Sr
Specifications of ATSAM3S4AA-MU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
64MHz
Connectivity
I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 1.95 V
Data Converters
A/D 8x10/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
Processor Series
ATSAM3x
Core
ARM Cortex M3
3rd Party Development Tools
JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3S-EK
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATSAM3S4AA-MU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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21. SAM3S Boot Program
21.1
21.2
21.3
6500C–ATARM–8-Feb-11
Description
Hardware and Software Constraints
Flow Diagram
The SAM-BA
into the different memories of the product.
Note:
Table 21-1.
The Boot Program implements the algorithm in
Figure 21-1. Boot Program Algorithm Flow Diagram
The SAM-BA Boot program seeks to detect a source clock either from the embedded main oscil-
lator with external crystal (main oscillator enabled) or from a supported frequency signal applied
to the XIN pin (Main oscillator in bypass mode).
Peripheral
UART0
UART0
• SAM-BA Boot uses the first 2048 bytes of the SRAM for variables and stacks. The remaining
• USB Requirements:
• UART0 requirements: None
available size can be used for user's code.
11,289 MHz
12,000 MHz
16,000 MHz
18,432 MHz
– External Crystal or External Clock
1. must be 2500 ppm and 1.8V Square Wave Signal.
®
Device
Setup
Boot Program integrates an array of programs permitting download and/or upload
Pins Driven during Boot Program Execution
Pin
URXD0
UTXD0
Run SAM-BA Monitor
USB Enumeration
Successful ?
(1)
Yes
with frequency of:
Figure
21-1.
No
SAM3S Preliminary
Run SAM-BA Monitor
Character # received
No
from UART0?
Yes
PIO Line
PA10
PA9
341
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