SAM3S1A Atmel Corporation, SAM3S1A Datasheet - Page 66

• Manufacturer Part Number: SAM3S1A
• Manufacturer: Atmel Corporation

Specifications of SAM3S1A

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 34
• Ext Interrupts: 34
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 2
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1000
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

10.6.3
10.6.3.1
10.6.3.2
10.6.3.3
10.6.4
66
SAM3S
Exception handlers
Vector table
Interrupt Service Routines (ISRs)
Fault handlers
System handlers
For more information about hard faults, memory management faults, bus faults, and usage
faults, see
The processor handles exceptions using:
Interrupts IRQ0 to IRQ34 are the exceptions handled by ISRs.
Hard fault, memory management fault, usage fault, bus fault are fault exceptions handled by the
fault handlers.
NMI, PendSV, SVCall SysTick, and the fault exceptions are all system exceptions that are han-
dled by system handlers.
The vector table contains the reset value of the stack pointer, and the start addresses, also
called exception vectors, for all exception handlers.
the exception vectors in the vector table. The least-significant bit of each vector must be 1, indi-
cating that the exception handler is Thumb code.
•
“Interrupt Clear-enable Registers” on page
“Fault handling” on page
70.
154.
Figure 10-3 on page 67
shows the order of
6500C–ATARM–8-Feb-11