Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet

Product codes
ATSAM4E-EK
Page of 1506
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
442
24.
SAM-BA Boot Program for SAM4E Microcontrollers
24.1
Description
The SAM-BA
®
 
Boot Program integrates an array of programs permitting download and/or upload into the different
memories of the product.
24.2
Embedded Characteristics
Default Boot Program Stored in SAM4E Series Products
Interface with SAM-BA
®
 Graphic User Interface
SAM-BA Boot
̶
Supports Several Communication Media
Serial Communication on UART0
USB Device Port Communication up to 1M Byte/s
̶
USB Requirements
External Crystal or Clock with the frequency of:
11.289 MHz
12.000 MHz
16.000 MHz
18.432 MHz
24.3
Hardware and Software Constraints
SAM-BA Boot uses the first 2048 bytes of the SRAM for variables and stacks. The remaining available size 
can be used for user's code.
USB Requirements:
̶
External Crystal or External Clock
 with frequency of:
11.289 MHz
12.000 MHz
16.000 MHz
18.432 MHz
UART0 requirements: None
Note:
1.
must be 2500 ppm and 1.8V Square Wave Signal. 
Table 24-1.
Pins Driven during Boot Program Execution
Peripheral
Pin
PIO Line
UART0
URXD0
PA9
UART0
UTXD0
PA10