SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 57
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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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13.3.3
6430E–ATARM–29-Aug-11
Core registers
The processor core registers are:
Table 13-2.
Program Counter
Name
R0-R12
MSP
PSP
LR
PC
PSR
ASPR
IPSR
EPSR
PRIMASK
Low registers
High registers
Stack Pointer
Link Register
Core register set summary
Type
RW
RW
RW
RW
RW
RW
RW
RO
RO
RW
(1)
FAULTMASK
CONTROL
PRIMASK
BASEPRI
SP (R13)
LR (R14)
PC (R15)
PSR
R10
R11
R12
Required
privilege
Either
Privileged
Either
Either
Either
Privileged
Either
Privileged
Privileged
Privileged
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
(2)
Reset
value
Unknown
See
description
Unknown
0xFFFFFFFF
See
description
0x01000000
0x00000000
0x00000000
0x01000000
0x00000000
General-purpose registers
Program status register
Exception mask registers
CONTROL register
PSP
‡
Description
“General-purpose registers” on page 58
“Stack Pointer” on page 58
“Stack Pointer” on page 58
“Link Register” on page 58
“Program Counter” on page 58
“Program Status Register” on page 59
“Application Program Status Register” on
page 60
“Interrupt Program Status Register” on page
61
“Execution Program Status Register” on page
62
“Priority Mask Register” on page 63
MSP
‡
Special registers
‡
Banked version of SP
SAM3U Series
57
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