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参数资料
型号： AT91SAM7S32B-MU-999
厂商： Atmel
文件页数： 105/165页
文件大小： 0K
描述： IC MCU ARM7 32KB FLASH 48-VQFN
产品培训模块： MCU Product Line Introduction
标准包装： 3,500
系列： SAM7S
核心处理器： ARM7
芯体尺寸： 16/32-位
速度： 55MHz
连通性： I²C，SPI，SSC，UART/USART
外围设备： 欠压检测/复位，DMA，POR，PWM，WDT
输入/输出数： 21
程序存储器容量： 32KB（32K x 8）
程序存储器类型： 闪存
RAM 容量： 8K 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： 48-VFQFN 裸露焊盘
包装： 带卷 (TR)
配用： AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
AT91SAM7S-EK-ND - KIT EVAL FOR ARM AT91SAM7S
44
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
two interrupt disable bits (one for each type of interrupt)
one bit to indicate ARM or Thumb execution
five bits to encode the current processor mode
All five exception modes also have a Saved Program Status Register (SPSR) that holds the CPSR of the task
immediately preceding the exception.
11.2.4.3
Exception Types
The ARM7TDMI
supports five types of exception and a privileged processing mode for each type. The types of
exceptions are:
fast interrupt (FIQ)
normal interrupt (IRQ)
memory aborts (used to implement memory protection or virtual memory)
attempted execution of an undefined instruction
software interrupts (SWIs)
Exceptions are generated by internal and external sources.
More than one exception can occur in the same time.
When an exception occurs, the banked version of R14 and the SPSR for the exception mode are used to save
state.
To return after handling the exception, the SPSR is moved to the CPSR, and R14 is moved to the PC. This can be
done in two ways:
by using a data-processing instruction with the S-bit set, and the PC as the destination
by using the Load Multiple with Restore CPSR instruction (LDM)
11.2.5
ARM Instruction Set Overview
The ARM instruction set is divided into:
Branch instructions
Data processing instructions
Status register transfer instructions
Load and Store instructions
Coprocessor instructions
Exception-generating instructions
ARM instructions can be executed conditionally. Every instruction contains a 4-bit condition code field (bit[31:28]).
Table 11-2 gives the ARM instruction mnemonic list.
Table 11-2.
ARM Instruction Mnemonic List
Mnemonic
Operation
Mnemonic
Operation
MOV
Move
CDP
Coprocessor Data Processing
ADD
Add
MVN
Move Not
SUB
Subtract
ADC
Add with Carry
RSB
Reverse Subtract
SBC
Subtract with Carry
CMP
Compare
RSC
Reverse Subtract with Carry
TST
Test
CMN
Compare Negated
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相关代理商/技术参数
参数描述
AT91SAM7S32-MU 功能描述:ARM微控制器 - MCU QFN IND TEMP RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT
AT91SAM7S32-MU-999 功能描述:ARM微控制器 - MCU Microcontroller RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT
AT91SAM7S512 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:AT91 ARM Thumb-based Microcontrollers
AT91SAM7S512-AU 功能描述:ARM微控制器 - MCU LQFP IND TEMP RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT
AT91SAM7S512-AU-999 功能描述:ARM微控制器 - MCU Ind. Temp Green RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 处理器系列:STM32F373xx 数据总线宽度:32 bit 最大时钟频率:72 MHz 程序存储器大小:256 KB 数据 RAM 大小:32 KB 片上 ADC:Yes 工作电源电压:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:LQFP-48 安装风格:SMD/SMT
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