SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 199

• 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

11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
The CMSIS provides thread-safe code that gives atomic access to the Interrupt Priority Regis-
ters.
and corresponding CMSIS variables that have one bit per interrupt.
Table 11-29. Mapping of interrupts to the interrupt variables
1.
Interrupts
0-34
35-63
• the 4-bit fields of the Interrupt Priority Registers map to an array of 4-bit integers, so that the
array IP[0] to IP[34] corresponds to the registers IPR0-IPR8, and the array entry IP[n] holds
the interrupt priority for interrupt n.
Table 11-29
Each array element corresponds to a single NVIC register, for example the element
ICER[0] corresponds to the ICER0 register.
CMSIS array elements
Set-enable
ISER[0]
ISER[1]
shows how the interrupts, or IRQ numbers, map onto the interrupt registers
Clear-enable
ICER[0]
ICER[1]
(1)
Set-pending
ISPR[0]
ISPR[1]
Clear-pending
ICPR[0]
ICPR[1]
IABR[0]
IABR[1]
Active Bit
SAM4S
SAM4S
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