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参数资料
| 型号： | AT32UC3A3256-CTUT |
| 厂商： | Atmel |
| 文件页数： | 20/94页 |
| 文件大小： | 0K |
| 描述： | IC MCU AVR32 256KB FLASH 144TBGA |
| 产品培训模块： | AVR UC3 Audio Application MCU Product Line Introduction AVR EVK1105 Digital Audio Gateway Kit AVR® UC3 Introduction |
| 标准包装： | 840 |
| 系列： | AVR®32 UC3 A3 |
| 核心处理器： | AVR |
| 芯体尺寸： | 32-位 |
| 速度： | 66MHz |
| 连通性： | EBI/EMI，I²C，IrDA，MMC，SPI，SSC，UART/USART，USB OTG |
| 外围设备： | 欠压检测/复位，DMA，POR，WDT |
| 输入/输出数： | 110 |
| 程序存储器容量： | 256KB（256K x 8） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 128K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.65 V ~ 1.95 V |
| 数据转换器： | A/D 8x10b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 144-TFBGA |
| 包装： | 托盘 |
| 产品目录页面： | 615 (CN2011-ZH PDF) |
| 配用： | 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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27
32072SH–AVR32–10/2012
AT32UC3A3
Figure 4-5.
The Status Register Low Halfword
4.4.3
Processor States
4.4.3.1
Normal RISC State
The AVR32 processor supports several different execution contexts as shown in Table 4-2 on
Mode changes can be made under software control, or can be caused by external interrupts or
exception processing. A mode can be interrupted by a higher priority mode, but never by one
with lower priority. Nested exceptions can be supported with a minimal software overhead.
When running an operating system on the AVR32, user processes will typically execute in the
application mode. The programs executed in this mode are restricted from executing certain
instructions. Furthermore, most system registers together with the upper halfword of the status
register cannot be accessed. Protected memory areas are also not available. All other operating
modes are privileged and are collectively called System Modes. They have full access to all priv-
ileged and unprivileged resources. After a reset, the processor will be in supervisor mode.
4.4.3.2
Debug State
The AVR32 can be set in a debug state, which allows implementation of software monitor rou-
tines that can read out and alter system information for use during application development. This
implies that all system and application registers, including the status registers and program
counters, are accessible in debug state. The privileged instructions are also available.
Bit 15
Bit 0
Reserved
Carry
Zero
Sign
0
-
T
-
Bit name
Initial value
0
L
Q
V
N
Z
C
-
Overflow
Saturation
-
Lock
Reserved
Scratch
Table 4-2.
Overview of Execution Modes, their Priorities and Privilege Levels.
Priority
Mode
Security
Description
1
Non Maskable Interrupt
Privileged
Non Maskable high priority interrupt mode
2
Exception
Privileged
Execute exceptions
3
Interrupt 3
Privileged
General purpose interrupt mode
4
Interrupt 2
Privileged
General purpose interrupt mode
5
Interrupt 1
Privileged
General purpose interrupt mode
6
Interrupt 0
Privileged
General purpose interrupt mode
N/A
Supervisor
Privileged
Runs supervisor calls
N/A
Application
Unprivileged
Normal program execution mode
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| AT32UC3A3256S | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR? Microcontroller |
| AT32UC3A3256S_09 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AVR32 32-Bit Microcontroller |
| AT32UC3A3256S_10 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:32-bit AVR??Microcontroller |
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