ATSAM3X4EA-AU Atmel, ATSAM3X4EA-AU Datasheet - Page 332

• Manufacturer Part Number: ATSAM3X4EA-AU
• Description: ARM Microcontrollers - MCU QFP144,GREEN, IND TEMP, MRL A
• Manufacturer: Atmel

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

22.5
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Hardware and Software Constraints
SAM3X/A
SAM3X/A
IAP software code example:
Table 22-4.
Peripheral
UART
UART
• SAM-BA Boot uses the first 2048 bytes of the SRAM for variables and stacks. The remaining
• UART requirement:
• USB requirements:
available size can be used for user's code.
(unsigned int) (*IAP_Function)(unsigned long);
void main (void){
/* Initialize the function pointer (retrieve function address from NMI
vector) */
/* Send your data to the sector here */
/* build the command to send to EEFC */
/* Call the IAP function with appropriate command */
}
– 12.000 MHz quartz or 12.000 MHz external clock on XIN, or
– no quartz or external clock on XIN, or
– below 5.0 MHz quartz or below 5.0 MHz external clock on XIN.
– 12.000 MHz quartz or 12.000 MHz external clock on XIN. 12 MHz must be
±500 ppm and 1.8V Square Wave Signal.
unsigned long FlashSectorNum = 200; //
unsigned long flash_cmd = 0;
unsigned long flash_status = 0;
unsigned long EFCIndex = 0; // 0:EEFC0, 1: EEFC1
IAP_Function = ((unsigned long) (*)(unsigned long)) 0x00800008;
flash_cmd =
flash_status = IAP_Function (EFCIndex, flash_cmd);
Pins Driven during Boot Program Execution
(0x5A << 24) | (FlashSectorNum << 8) | AT91C_MC_FCMD_EWP;
Pin
URXD
UTXD
PIO Line
11057B–ATARM–28-May-12
11057B–ATARM–28-May-12
PA8
PA9