SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 247

• Manufacturer Part Number: SAM4S16C
• Manufacturer: Atmel Corporation

Specifications of SAM4S16C

• Flash (kbytes): 1024 Kbytes
• Pin Count: 100
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• Usb Transceiver: 1
• Quadrature Decoder Channels: 2
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1000
• Analog Comparators: 1
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 128
• Self Program Memory: YES
• External Bus Interface: 1
• 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: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

XN and Strongly-ordered rules always apply to the System Control Space regardless of the value of the ENABLE bit.
When the ENABLE bit is set to 1, at least one region of the memory map must be enabled for the system to function
unless the PRIVDEFENA bit is set to 1. If the PRIVDEFENA bit is set to 1 and no regions are enabled, then only privileged
software can operate.
When the ENABLE bit is set to 0, the system uses the default memory map. This has the same memory attributes as if
the MPU is not implemented. The default memory map applies to accesses from both privileged and unprivileged software.
When the MPU is enabled, accesses to the System Control Space and vector table are always permitted. Other areas are
accessible based on regions and whether PRIVDEFENA is set to 1.
Unless HFNMIENA is set to 1, the MPU is not enabled when the processor is executing the handler for an exception with
priority –1 or –2. These priorities are only possible when handling a hard fault or NMI exception, or when FAULTMASK is
enabled. Setting the HFNMIENA bit to 1 enables the MPU when operating with these two priorities.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
• Any access by unprivileged software that does not address an enabled memory region causes a memory management
fault.
SAM4S
SAM4S
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