SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 487

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SAM4S16C

Manufacturer Part Number
SAM4S16C
Description
Manufacturer
Atmel Corporation
Datasheets

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
26.2.11
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
Fast Startup
As the Programmable Clock Controller does not manage with glitch prevention when switching
clocks, it is strongly recommended to disable the Programmable Clock before any configuration
change and to re-enable it after the change is actually performed.
The device allows the processor to restart in less than 10 microseconds while the device is in
Wait mode. The system enters Wait mode by executing the WaitForEvent (WFE) instruction of
the processor while the LPM bit is at 1 in the PMC Fast Startup Mode Register (PMC_FSMR).
Important: Prior to asserting any WFE instruction to the processor, the internal sources of
wakeup provided by RTT, RTC and USB must be cleared and verified too, that none of the
enabled external wakeup inputs (WKUP) hold an active polarity.
A Fast Startup is enabled upon the detection of a programmed level on one of the 16 wake-up
inputs (WKUP) or upon an active alarm from the RTC, RTT and USB Controller. The polarity of
the 16 wake-up inputs is programmable by writing the PMC Fast Startup Polarity Register
(PMC_FSPR).
The Fast Restart circuitry, as shown in
startup signal to the Power Management Controller. As soon as the fast startup signal is
asserted, the embedded 4/8/12 MHz Fast RC oscillator restarts automatically.
When entering the wait mode, the embedded flash can be placed in low power mode depending
on the configuration of the FLPM in PMC_FSMR register. This bitfield can be programmed any-
time and will be taken into account at the next WFE execution.
The power consumption reduction is optimal when configuring 1 (deep power down mode) in
FLPM. If 0 is programmed (standby mode), the power consumption is slightly higher as com-
pared to the deep power down mode.
When programming 2 in FLPM, the wait mode flash power consumption is equivalent to the
active mode when there is no read access on the flash.
Figure
26-8, is fully asynchronous and provides a fast
SAM4S
SAM4S
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