SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 590
SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
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
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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31.9.17
Name:
Address:
Access:
Reset:
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x535343 (“SSC” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x535343 (“SSC” in ASCII).
Protects the registers:
• WPKEY: Write Protect KEY
Should be written at value 0x535343 (“SSC” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
590
590
•
•
•
•
•
•
•
“SSC Clock Mode Register” on page 567
“SSC Receive Clock Mode Register” on page 568
“SSC Receive Frame Mode Register” on page 570
“SSC Transmit Clock Mode Register” on page 572
“SSC Transmit Frame Mode Register” on page 574
“SSC Receive Compare 0 Register” on page 580
“SSC Receive Compare 1 Register” on page 581
31
23
15
—
7
SAM3U Series
SAM3U Series
SSC Write Protect Mode Register
SSC_WPMR
0x400040E4
Read-write
See
Table 31-6
30
22
14
—
6
29
21
13
—
5
28
20
12
—
4
WPKEY
WPKEY
WPKEY
27
19
11
—
3
26
18
10
—
2
25
17
—
9
1
6430E–ATARM–29-Aug-11
6430E–ATARM–29-Aug-11
WPEN
24
16
8
0
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