SAM3S2B Atmel Corporation, SAM3S2B Datasheet - Page 148
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SAM3S2B
Manufacturer Part Number
SAM3S2B
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S2B
Flash (kbytes)
128 Kbytes
Pin Count
64
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
23
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
Usb Transceiver
1
Quadrature Decoder Channels
1
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
10
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)
32
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
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10.18.11 WFE
10.18.11.1
10.18.11.2
10.18.11.3
10.18.11.4
148
WFE
SAM3S
Syntax
Operation
Condition flags
Examples
; Wait for event
Wait For Event.
where:
cond
WFE is a hint instruction.
If the event register is 0, WFE suspends execution until one of the following events occurs:
If the event register is 1, WFE clears it to 0 and returns immediately.
For more information see
This instruction does not change the flags.
• an exception, unless masked by the exception mask registers or the current priority level
• an exception enters the Pending state, if SEVONPEND in the System Control Register is set
• a Debug Entry request, if Debug is enabled
• an event signaled by a peripheral or another processor in a multiprocessor system using the
SEV instruction.
WFE{cond}
is an optional condition code, see
“Power management” on page
“Conditional execution” on page
73.
6500C–ATARM–8-Feb-11
84.
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