SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 957
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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36.7.30
Name:
Address:
Access:
• WPCMD: Write Protect Command
This command is performed only if the WPKEY value is correct.
0 = Disable the Write Protect SW of the register groups of which the bit WPRGx is at 1.
1 = Enable the Write Protect SW of the register groups of which the bit WPRGx is at 1.
2 = Enable the Write Protect HW of the register groups of which the bit WPRGx is at 1.
3 = No effect.
Note:
• WPRGx: Write Protect Register Group x
0 = The WPCMD command has no effect on the register group x.
1 = The WPCMD command is applied to the register group x.
• WPKEY: Write Protect Key
Should be written at value 0x50574D (“PWM” in ASCII). Writing any other value in this field aborts the write operation of the
WPCMD field. Always reads as 0.
List of register groups:
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
• Register group 0:
• Register group 1:
• Register group 2:
WPRG5
Moreover, to meet security requirements, in this mode of operation, the PIO lines associated with PWM can not be con-
figured through the PIO interface, not even by the PIO controller.
–
–
–
–
–
31
23
15
7
“PWM Clock Register” on page 928
“PWM Disable Register” on page 930
“PWM Sync Channels Mode Register” on page 936
“PWM Channel Mode Register” on page 964
“PWM Stepper Motor Mode Register” on page 956
Only a hardware reset of the PWM controller can disable the Write Protect HW.
PWM Write Protect Control Register
PWM_WPCR
0x400200E4
Write-only
WPRG4
30
22
14
6
WPRG3
29
21
13
5
WPRG2
28
20
12
4
WPKEY
WPKEY
WPKEY
WPRG1
27
19
11
3
WPRG0
26
18
10
2
25
17
9
1
WPCMD
SAM4S
SAM4S
24
16
8
0
957
957
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