ATSAM3S-EK Atmel, ATSAM3S-EK Datasheet - Page 341

• Manufacturer Part Number: ATSAM3S-EK
• Description: KIT EVAL FOR ATSAM3S4C
• Manufacturer: Atmel
• Series: SAM3Sr
• Type: MCUr

Specifications of ATSAM3S-EK

• Contents: Board, Cables, Power Supply
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex-M3
• Kit Contents: Board
• Features: TFT Colour LCD Display, SD/MMC Interface
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• For Use With/related Products: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
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