SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 844

• Manufacturer Part Number: SAM3S4B
• Manufacturer: Atmel Corporation

Specifications of SAM3S4B

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 23
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• 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): 48
• 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

36.3
Figure 36-1. Pulse Width Modulation Controller Block Diagram
844
PWMFI0
PWMFIx
Block Diagram
SAM3S
PMC
PIO
MCK
• Synchronous Channel mode
• Connection to one PDC channel
• independent event lines which can send up to 4 triggers on ADC within a period
• Programmable Fault Input providing an asynchronous protection of outputs
• Stepper motor control (2 Channels)
Generator
CLOCK
– Independent Clock Selection
– Independent Period and Duty Cycle, with Double Buffering
– Synchronous Channels share the same counter
– Mode to update the synchronous channels registers after a programmable number
– Offers Buffer transfer without Processor Intervention, to update duty cycle of
of periods
synchronous channels
Selector
Selector
Clock
Clock
Interface
APB
APB
Duty-Cycle
Channel x
Duty-Cycle
Channel 0
Counter
Counter
Update
Update
Period
Period
PDC
MUX
Comparator
Comparator
OCx
OC0
PWM Controller
Channel 0
Channel x
Dead-Time
Dead-Time
Generator
Generator
DTOHx
DTOLx
DTOH0
DTOL0
Comparison
Units
Override
Override
Output
Output
OOOHx
OOOLx
OOOH0
OOOL0
Protection
Protection
Interrupt Generator
Fault
Fault
Generator
Events
PWMHx
PWMLx
PWMH0
PWML0
event line 0
event line 1
event line x
6500C–ATARM–8-Feb-11
PIO
NVIC
ADC
PWMHx
PWMLx
PWML0
PWMH0