SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 507
SAM4S16C
Manufacturer Part Number
SAM4S16C
Description
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
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26.2.16.8
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in
• MAINF: Main Clock Frequency
Gives the number of Main Clock cycles within 16 Slow Clock periods.
• MAINFRDY: Main Clock Ready
0 = MAINF value is not valid or the Main Oscillator is disabled or a measure has just been started by means of RCMEAS.
1 = The Main Oscillator has been enabled previously and MAINF value is available.
• RCMEAS: RC Oscillator Frequency Measure (write-only)
0 = No effect.
1 = restart a measure of the main RC frequency, MAINF will carry the new frequency as soon as a low to high transition
occurs on MAINFRDY flag.
The measure is performed on the main frequency (i.e. not limited to RC oscillator only) but if the main clock frequency
source is the fast crystal oscillator, the restart of the measure is unneeded because of the well known stability of crystal
oscillators.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
31
23
15
–
–
7
PMC Clock Generator Main Clock Frequency Register
CKGR_MCFR
0x400E0424
Read-Write
30
22
14
–
–
6
29
21
13
–
–
5
RCMEAS
28
20
12
–
4
MAINF
MAINF
“PMC Write Protect Mode Register”
27
19
11
–
–
3
26
18
10
–
–
2
.
25
17
–
–
9
1
SAM4S
SAM4S
MAINFRDY
24
16
–
8
0
507
507
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