參數(shù)資料
型號: AT91SAM7X256-AU-999
廠商: Atmel
文件頁數(shù): 7/44頁
文件大小: 0K
描述: IC ARM7 MCU 256K FLASH 100-LQFP
產(chǎn)品培訓模塊: SAM9 MPU Boot Solutions & Application Deployment
AT91SAM7X and SAM7XC Flash-based Microcontrollers
MCU Product Line Introduction
標準包裝: 1,000
系列: SAM7X
核心處理器: ARM7
芯體尺寸: 16/32-位
速度: 55MHz
連通性: CAN,以太網(wǎng),I²C,SPI,SSC,UART/USART,USB
外圍設(shè)備: 欠壓檢測/復位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 62
程序存儲器容量: 256KB(256K x 8)
程序存儲器類型: 閃存
RAM 容量: 64K 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: 100-LQFP
包裝: 帶卷 (TR)
配用: AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
AT91SAM7X-EK-ND - KIT EVAL FOR AT91SAM7X256/128
其它名稱: AT91SAM7X256-AU-999TR
15
6120GS–ATARM–07-Apr-11
SAM7X512/256/128 Summary
7.
Processor and Architecture
7.1
ARM7TDMI Processor
RISC processor based on ARMv4T Von Neumann architecture
– Runs at up to 55 MHz, providing 0.9 MIPS/MHz
Two instruction sets
– ARM high-performance 32-bit instruction set
– Thumb high code density 16-bit instruction set
Three-stage pipeline architecture
– Instruction Fetch (F)
– Instruction Decode (D)
– Execute (E)
7.2
Debug and Test Features
Integrated embedded in-circuit emulator
– Two watchpoint units
– Test access port accessible through a JTAG protocol
– Debug communication channel
Debug Unit
–Two-pin UART
– Debug communication channel interrupt handling
– Chip ID Register
IEEE1149.1 JTAG Boundary-scan on all digital pins
7.3
Memory Controller
Programmable Bus Arbiter
– Handles requests from the ARM7TDMI, the Ethernet MAC and the Peripheral DMA
Controller
Address decoder provides selection signals for
– Three internal 1 Mbyte memory areas
– One 256 Mbyte embedded peripheral area
Abort Status Registers
– Source, Type and all parameters of the access leading to an abort are saved
– Facilitates debug by detection of bad pointers
Misalignment Detector
– Alignment checking of all data accesses
– Abort generation in case of misalignment
Remap Command
– Remaps the SRAM in place of the embedded non-volatile memory
– Allows handling of dynamic exception vectors
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