SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 51

• 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

11.4.1.12
11.4.1.13
Name:
Access:
Reset:
The PRIMASK register prevents the activation of all exceptions with a configurable priority.
• PRIMASK
0: no effect
1: prevents the activation of all exceptions with a configurable priority.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
31
23
15
7
Exception Mask Registers
Priority Mask Register
PRIMASK
Read-write
0x00000000
30
22
14
6
0
The exception mask registers disable the handling of exceptions by the processor. Disable
exceptions where they might impact on timing critical tasks.
To access the exception mask registers use the MSR and MRS instructions, or the CPS instruc-
tion to change the value of PRIMASK or FAULTMASK. See
more information.
29
21
13
5
28
20
12
4
–
–
–
–
27
19
11
3
26
18
10
2
“MRS”
,
“MSR”
25
17
9
1
, and
SAM4S
SAM4S
PRIMASK
“CPS”
24
16
8
0
for
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