SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 219
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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6430E–ATARM–29-Aug-11
Table 13-37. TEX, C, B, and S encoding (Continued)
1.
Table 13-38
range 4-7.
Table 13-38. Cache policy for memory attribute encoding
Table 13-39
unprivileged software.
Table 13-39. AP encoding
TEX
b001
b010
b1B
B
Encoding, AA or BB
00
01
10
11
AP[2:0]
000
001
010
011
100
The MPU ignores the value of this bit.
C
0
1
0
1
A
Privileged
permissions
No access
RW
RW
RW
Unpredictable
shows the cache policy for memory attribute encodings with a TEX value is in the
shows the AP encodings that define the access permissions for privileged and
B
0
1
0
1
0
1
x
A
(1)
S
0
1
x
x
0
1
x
x
x
0
1
(1)
(1)
(1)
(1)
(1)
Corresponding cache policy
Non-cacheable
Write back, write and read allocate
Write through, no write allocate
Write back, no write allocate
Memory type
Normal
Reserved encoding
Implementation defined
attributes.
Normal
Device
Reserved encoding
Reserved encoding
Normal
Unprivileged
permissions
No access
No access
RO
RW
Unpredictable
Shareability
Not
shareable
Shareable
Not
shareable
Shareable
Not
shareable
Not
shareable
Shareable
Description
All accesses generate a permission fault
Access from privileged software only
Writes by unprivileged software generate a permission
fault
Full access
Reserved
Other attributes
-
-
Outer and inner write-back. Write and
read allocate.
Nonshared Device.
-
-
SAM3U Series
219
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