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參數(shù)資料
| 型號： | AT32UC3A3256-ALUT |
| 廠商： | Atmel |
| 文件頁數(shù)： | 26/94頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU AVR32 256KB FLASH 144LQFP |
| 產(chǎn)品培訓(xùn)模塊： | AVR UC3 Audio Application MCU Product Line Introduction AVR EVK1105 Digital Audio Gateway Kit AVR® UC3 Introduction |
| 標(biāo)準(zhǔn)包裝： | 300 |
| 系列： | AVR®32 UC3 A3 |
| 核心處理器： | AVR |
| 芯體尺寸： | 32-位 |
| 速度： | 66MHz |
| 連通性： | EBI/EMI，I²C，IrDA，MMC，SPI，SSC，UART/USART，USB OTG |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，DMA，POR，WDT |
| 輸入/輸出數(shù)： | 110 |
| 程序存儲器容量： | 256KB（256K x 8） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 128K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.65 V ~ 1.95 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 8x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 144-LQFP |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 615 (CN2011-ZH PDF) |
| 配用： | ATSTK600-RC32-ND - STK600 ROUTING CARD AVR ATEVK1104-ND - KIT DEV/EVAL FOR AVR32 AT32UC3A ATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMR ATEVK1100-ND - KIT DEV/EVAL FOR AVR32 AT32UC3A |
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32
32072SH–AVR32–10/2012
AT32UC3A3
status register. Upon entry into Debug mode, hardware sets the SR[D] bit and jumps to the
Debug Exception handler. By default, Debug mode executes in the exception context, but with
dedicated Return Address Register and Return Status Register. These dedicated registers
remove the need for storing this data to the system stack, thereby improving debuggability. The
mode bits in the status register can freely be manipulated in Debug mode, to observe registers
in all contexts, while retaining full privileges.
Debug mode is exited by executing the retd instruction. This returns to the previous context.
4.5.5
Entry Points for Events
Several different event handler entry points exists. In AVR32UC, the reset address is
0x8000_0000. This places the reset address in the boot flash memory area.
TLB miss exceptions and scall have a dedicated space relative to EVBA where their event han-
dler can be placed. This speeds up execution by removing the need for a jump instruction placed
at the program address jumped to by the event hardware. All other exceptions have a dedicated
event routine entry point located relative to EVBA. The handler routine address identifies the
exception source directly.
AVR32UC uses the ITLB and DTLB protection exceptions to signal a MPU protection violation.
ITLB and DTLB miss exceptions are used to signal that an access address did not map to any of
the entries in the MPU. TLB multiple hit exception indicates that an access address did map to
multiple TLB entries, signalling an error.
All external interrupt requests have entry points located at an offset relative to EVBA. This
autovector offset is specified by an external Interrupt Controller. The programmer must make
sure that none of the autovector offsets interfere with the placement of other code. The autovec-
tor offset has 14 address bits, giving an offset of maximum 16384 bytes.
Special considerations should be made when loading EVBA with a pointer. Due to security con-
siderations, the event handlers should be located in non-writeable flash memory, or optionally in
a privileged memory protection region if an MPU is present.
If several events occur on the same instruction, they are handled in a prioritized way. The priority
ordering is presented in Table 4-4. If events occur on several instructions at different locations in
the pipeline, the events on the oldest instruction are always handled before any events on any
younger instruction, even if the younger instruction has events of higher priority than the oldest
instruction. An instruction B is younger than an instruction A if it was sent down the pipeline later
than A.
The addresses and priority of simultaneous events are shown in Table 4-4. Some of the excep-
tions are unused in AVR32UC since it has no MMU, coprocessor interface, or floating-point unit.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT32UC3A3256AU-ALUT | 功能描述:32位微控制器 - MCU 256KB Flash Audio industrial RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| AT32UC3A3256-CTUR | 功能描述:32位微控制器 - MCU 256KB, 144FFBGA Ind RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| AT32UC3A3256-CTUT | 功能描述:32位微控制器 - MCU 256KB, 144FFBGA Ind RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
| AT32UC3A3256-CTUT SL383 | 制造商:Atmel Corporation 功能描述: |
| AT32UC3A3256-DDW | 功能描述:32位微控制器 - MCU UC3A3 256Kb flash - 256Kflash UC3A - Wafer RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
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