參數(shù)資料
型號： AT91SAM7X512-CU
廠商： Atmel
文件頁數(shù)： 14/44頁
文件大?。?/td> 0K
描述： MCU ARM 512K HS FLASH 100-TFBGA
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： 260
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： 512KB（512K 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-TFBGA
包裝： 托盤
配用： AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
AT91SAM7X-EK-ND - KIT EVAL FOR AT91SAM7X256/128
21
6120GS–ATARM–07-Apr-11
SAM7X512/256/128 Summary
may be performed even while program or erase functions are being executed in the other mem-
ory plane.
One EFC is embedded in the SAM7X256/128 to control the single plane of 256/128 KBytes.
8.5.3
Lock Regions
8.5.3.1
SAM7X512
Two Embedded Flash Controllers each manage 16 lock bits to protect 16 regions of the flash
against inadvertent flash erasing or programming commands. The SAM7X512 contains 32 lock
regions and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16
Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the EFC
trigs an interrupt.
The 32 NVM bits are software programmable through both of the EFC User Interfaces. The com-
mand “Set Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock
region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
8.5.3.2
SAM7X256
The Embedded Flash Controller manages 16 lock bits to protect 16 regions of the flash against
inadvertent flash erasing or programming commands. The SAM7X256 contains 16 lock regions
and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16 Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the EFC
trigs an interrupt.
The 16 NVM bits are software programmable through the EFC User Interface. The command
“Set Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
8.5.3.3
SAM7X128
The Embedded Flash Controller manages 8 lock bits to protect 8 regions of the flash against
inadvertent flash erasing or programming commands. The SAM7X128 contains 8 lock regions
and each lock region contains 64 pages of 256 bytes. Each lock region has a size of 16 Kbytes.
If a locked-region’s erase or program command occurs, the command is aborted and the EFC
trigs an interrupt.
The 8 NVM bits are software programmable through the EFC User Interface. The command “Set
Lock Bit” enables the protection. The command “Clear Lock Bit” unlocks the lock region.
Asserting the ERASE pin clears the lock bits, thus unlocking the entire Flash.
8.5.4
Security Bit Feature
The SAM7X512/256/128 features a security bit, based on a specific NVM-Bit. When the security
is enabled, any access to the Flash, either through the ICE interface or through the Fast Flash
Programming Interface, is forbidden. This ensures the confidentiality of the code programmed in
the Flash.
This security bit can only be enabled, through the Command “Set Security Bit” of the EFC User
Interface. Disabling the security bit can only be achieved by asserting the ERASE pin at 1, and
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AT91SAM7XC128B-AU-999 功能描述:IC MCU ARM7 128KB FLASH 100LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:SAM7XC 產(chǎn)品培訓模塊:The Ultra-Low Power MSP430 MSP430 Overview MSP430 Design Tools MSP430 Peripherals MSP430x2xx/4xx and Wireless Overview Portable Medical Solutions with MSP430 MSP430 for Utility Metering Solutions MSP430: How to JTAG MSP430, How To Use the Clock System Grace Software Graphical User Interface MCU Overview Driver Library MSP430Ware Overview 標準包裝:1 系列:MSP430x4xx 核心處理器:RISC 芯體尺寸:16-位 速度:8MHz 連通性:SPI，UART/USART 外圍設備:欠壓檢測/復位，LCD，POR，PWM，WDT 輸入/輸出數(shù):48 程序存儲器容量:32KB（32K x 8 + 256B） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 8x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:100-LQFP 包裝:Digi-Reel® 其它名稱:296-26232-6
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