ATSAM3U2EA-AU Atmel, ATSAM3U2EA-AU Datasheet - Page 96
![IC MCU 32BIT 128KB FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
ATSAM3U2EA-AU
Manufacturer Part Number
ATSAM3U2EA-AU
Description
IC MCU 32BIT 128KB FLASH 144LQFP
Manufacturer
Atmel
Series
SAM3Ur
Specifications of ATSAM3U2EA-AU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
96MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
36K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b, 8x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Controller Family/series
SAM3U
No. Of I/o's
96
Ram Memory Size
36KB
Cpu Speed
96MHz
No. Of Timers
3
Rohs Compliant
Yes
Processor Series
ATSAM3x
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
36 KB
Interface Type
4xUSART, 2xTWI, 5xSPI, Bus
Maximum Clock Frequency
96 MHz
Number Of Programmable I/os
96
Number Of Timers
8
Operating Supply Voltage
1.62 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
ATSAM3U-EK
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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13.10.3
13.10.3.1
13.10.3.2
13.10.3.3
96
SAM3U Series
Flexible second operand
Constant
Instruction substitution
Register with optional shift
Bit[0] of any address you write to the PC with a BX, BLX, LDM, LDR, or POP instruction must be
1 for correct execution, because this bit indicates the required instruction set, and the Cortex-M3
processor only supports Thumb instructions.
Many general data processing instructions have a flexible second operand. This is shown as
Operand2 in the descriptions of the syntax of each instruction.
Operand2 can be a:
You specify an Operand2 constant in the form:
where constant can be:
In the constants shown above, X and Y are hexadecimal digits.
In addition, in a small number of instructions, constant can take a wider range of values.
These are described in the individual instruction descriptions.
When an Operand2 constant is used with the instructions MOVS, MVNS, ANDS, ORRS, ORNS,
EORS, BICS, TEQ or TST, the carry flag is updated to bit[31] of the constant, if the constant is
greater than 255 and can be produced by shifting an 8-bit value. These instructions do not affect
the carry flag if Operand2 is any other constant.
Your assembler might be able to produce an equivalent instruction in cases where you specify a
constant that is not permitted. For example, an assembler might assemble the instruction CMP
Rd, #0xFFFFFFFE as the equivalent instruction CMN Rd, #0x2.
You specify an Operand2 register in the form:
where:
Rm
shift
•
•
• any constant that can be produced by shifting an 8-bit value left by any number of bits within
• any constant of the form 0x00XY00XY
• any constant of the form 0xXY00XY00
• any constant of the form 0xXYXYXYXY.
“Constant”
“Register with optional shift” on page 96
a 32-bit word
#constant
Rm {, shift}
ASR #n
LSL #n
is the register holding the data for the second operand.
is an optional shift to be applied to Rm. It can be one of:
arithmetic shift right n bits, 1 ≤ n ≤ 32.
logical shift left n bits, 1 ≤ n ≤ 31.
6430D–ATARM–25-Mar-11
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