ATSAM3S4AA-AU Atmel, ATSAM3S4AA-AU Datasheet - Page 210
ATSAM3S4AA-AU
Manufacturer Part Number
ATSAM3S4AA-AU
Description
IC MCU 32BIT 256KB FLASH 48LQFP
Manufacturer
Atmel
Series
SAM3Sr
Specifications of ATSAM3S4AA-AU
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
64MHz
Connectivity
I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.62 V ~ 1.95 V
Data Converters
A/D 8x10/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Controller Family/series
ATSAM3S
No. Of I/o's
34
Ram Memory Size
48KB
Cpu Speed
64MHz
No. Of Timers
6
Rohs Compliant
Yes
Package
48LQFP
Device Core
ARM Cortex M3
Family Name
AT91
Maximum Speed
64 MHz
Operating Supply Voltage
1.8|3.3 V
Data Bus Width
32 Bit
Number Of Programmable I/os
34
Interface Type
I2C/I2S/SPI/UART/USART/USB
On-chip Adc
9-chx12-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Manufacturer
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10.24 Glossary
This glossary describes some of the terms used in technical documents from ARM.
Abort
A mechanism that indicates to a processor that the value associated with a memory access is
invalid. An abort can be caused by the external or internal memory system as a result of
attempting to access invalid instruction or data memory.
Aligned
A data item stored at an address that is divisible by the number of bytes that defines the data
size is said to be aligned. Aligned words and halfwords have addresses that are divisible by four
and two respectively. The terms word-aligned and halfword-aligned therefore stipulate
addresses that are divisible by four and two respectively.
Banked register
A register that has multiple physical copies, where the state of the processor determines which
copy is used. The Stack Pointer, SP (R13) is a banked register.
Base register
In instruction descriptions, a register specified by a load or store instruction that is used to hold
the base value for the instruction’s address calculation. Depending on the instruction and its
addressing mode, an offset can be added to or subtracted from the base register value to form
the address that is sent to memory.
See also
“Index register”
Breakpoint
A breakpoint is a mechanism provided by debuggers to identify an instruction at which program
execution is to be halted. Breakpoints are inserted by the programmer to enable inspection of
register contents, memory locations, variable values at fixed points in the program execution to
test that the program is operating correctly. Breakpoints are removed after the program is suc-
cessfully tested.
Condition field
A four-bit field in an instruction that specifies a condition under which the instruction can
execute.
Conditional execution
If the condition code flags indicate that the corresponding condition is true when the instruction
starts executing, it executes normally. Otherwise, the instruction does nothing.
Context
The environment that each process operates in for a multitasking operating system. In ARM pro-
cessors, this is limited to mean the physical address range that it can access in memory and the
associated memory access permissions.
Coprocessor
A processor that supplements the main processor. Cortex-M3 does not support any
coprocessors.
SAM3S Preliminary
210
6500C–ATARM–8-Feb-11
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