SAM3S2C Atmel Corporation, SAM3S2C Datasheet - Page 491
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SAM3S2C
Manufacturer Part Number
SAM3S2C
Description
Manufacturer
Atmel Corporation
Specifications of SAM3S2C
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
39
Hardware Qtouch Acquisition
No
Max I/o Pins
47
Ext Interrupts
47
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)
32
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
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Figure 28-7. Event Detector on Input Lines (Figure represents line 0)
28.5.10.1
28.5.10.2
28.5.10.3
28.5.10.4
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
Resynchronized input on line 0
Example
Interrupt Mode Configuration
Edge or Level Detection Configuration
Falling/Rising Edge or Low/High Level Detection Configuration.
If generating an interrupt is required on the following:
The configuration required is described below.
All the interrupt sources are enabled by writing 32’hFFFF_FFFF in PIO_IER.
Then the Additional Interrupt Mode is enabled for line 0 to 7 by writing 32’h0000_00FF in
PIO_AIMER.
Lines 3, 4 and 5 are configured in Level detection by writing 32’h0000_0038 in PIO_LSR.
The other lines are configured in Edge detection by default, if they have not been previously con-
figured. Otherwise, lines 0, 1, 2, 6 and 7 must be configured in Edge detection by writing
32’h0000_00C7 in PIO_ESR.
Lines 0, 2, 4, 5 and 7 are configured in Rising Edge or High Level detection by writing
32’h0000_00B5 in PIO_REHLSR.
• Rising edge on PIO line 0
• Falling edge on PIO line 1
• Rising edge on PIO line 2
• Low Level on PIO line 3
• High Level on PIO line 4
• High Level on PIO line 5
• Falling edge on PIO line 6
• Rising edge on PIO line 7
• Any edge on the other lines
PIO_REHLSR[0]
PIO_FELLSR[0]
Rising Edge
Falling Edge
Detector
High Level
Low Level
Detector
Detector
Detector
Detector
Edge
PIO_FRLHSR[0]
0
0
1
1
PIO_LSR[0]
PIO_ESR[0]
PIO_ELSR[0]
1
0
PIO_AIMER[0]
PIO_AIMDR[0]
PIO_AIMMR[0]
1
0
Event detection on line 0
Event Detector
SAM3S
SAM3S
491
491
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