SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 581

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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
28.7.46
Name:
Address:
Access:
Reset:
For more information on Write Protection Registers, refer to
Interface”.
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x50494F (“PIO” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x50494F (“PIO” in ASCII).
Protects the registers:
“PIO Enable Register” on page 556
“PIO Disable Register” on page 556
“PIO Output Enable Register” on page 557
“PIO Output Disable Register” on page 558
“PIO Input Filter Enable Register” on page 559
“PIO Input Filter Disable Register” on page 559
“PIO Multi-driver Enable Register” on page 564
“PIO Multi-driver Disable Register” on page 565
“PIO Pull Up Disable Register” on page 566
“PIO Pull Up Enable Register” on page 566
“PIO Peripheral ABCD Select Register 1” on page 568
“PIO Peripheral ABCD Select Register 2” on page 569
“PIO Output Write Enable Register” on page 574
“PIO Output Write Disable Register” on page 574
“PIO Pad Pull Down Disable Register” on page 572
“PIO Pad Pull Down Status Register” on page 573
“PIO Parallel Capture Mode Register” on page 584
• WPKEY: Write Protect KEY
Should be written at value 0x50494F (“PIO” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
31
23
15
7
PIO Write Protect Mode Register
PIO_WPMR
0x400E0EE4 (PIOA), 0x400E10E4 (PIOB), 0x400E12E4 (PIOC)
30
22
14
Read-write
See
6
Table 28-3
29
21
13
5
28
20
12
4
WPKEY
WPKEY
WPKEY
Section 28.7 ”Parallel Input/Output Controller (PIO) User
27
19
11
3
26
18
10
2
25
17
9
1
SAM4S
SAM4S
WPEN
24
16
8
0
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