ATSAM3S4CA-AU Atmel, ATSAM3S4CA-AU Datasheet - Page 296

• Manufacturer Part Number: ATSAM3S4CA-AU
• Description: IC MCU 32BIT 256KB FLASH 100LQFP
• Manufacturer: Atmel
• Series: SAM3Sr

Specifications of ATSAM3S4CA-AU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 79
• 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 16x10/12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Controller Family/series: ATSAM3S
• No. Of I/o's: 79
• Ram Memory Size: 48KB
• Cpu Speed: 64MHz
• No. Of Timers: 6
• Rohs Compliant: Yes
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• 3rd Party Development Tools: JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3S-EK
• Cpu Family: AT91
• Device Core: ARM Cortex-M3
• Device Core Size: 32b
• Frequency (max): 64MHz
• Total Internal Ram Size: 48KB
• # I/os (max): 79
• Number Of Timers - General Purpose: 6
• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Supply Voltage (max): 1.95/3.6V
• Operating Supply Voltage (min): 1.62V
• On-chip Adc: 16-chx12-bit
• On-chip Dac: 2-chx12-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

18.3.3.1
296
SAM3S Preliminary
Getting Embedded Flash Descriptor
Figure 18-5. Command State Chart
This command allows the system to learn about the Flash organization. The system can take full
advantage of this information. For instance, a device could be replaced by one with more Flash
capacity, and so the software is able to adapt itself to the new configuration.
To get the embedded Flash descriptor, the application writes the GETD command in the
EEFC_FCR register. The first word of the descriptor can be read by the software application in
the EEFC_FRR register as soon as the FRDY flag in the EEFC_FSR register rises. The next
reads of the EEFC_FRR register provide the following word of the descriptor. If extra read oper-
Write FCMD and PAGENB in Flash Command Register
Check if FLOCKE flag Set
Check if FCMDE flag Set
Check if FRDY flag Set
Read Status: MC_FSR
Check if FRDY flag Set
Read Status: MC_FSR
Command Successfull
Yes
Yes
No
No
No
No
Yes
Yes
Locking region violation
Bad keyword violation
6500C–ATARM–8-Feb-11