參數(shù)資料
型號(hào)： AT91SAM7SE32-CU-999
廠商： Atmel
文件頁(yè)數(shù)： 16/47頁(yè)
文件大小： 0K
描述： IC MCU ARM7 32KB FLASH 144LFBGA
產(chǎn)品培訓(xùn)模塊： MCU Product Line Introduction
產(chǎn)品變化通告： AT91SAM7SE32 Obsolescence 10/May/2012
標(biāo)準(zhǔn)包裝： 3,000
系列： SAM7SE
核心處理器： ARM7
芯體尺寸： 16/32-位
速度： 55MHz
連通性： EBI/EMI，I²C，SPI，SSC，UART/USART，USB
外圍設(shè)備： 欠壓檢測(cè)/復(fù)位，POR，PWM，WDT
輸入/輸出數(shù)： 88
程序存儲(chǔ)器容量： 32KB（32K x 8）
程序存儲(chǔ)器類(lèi)型： 閃存
RAM 容量： 8K 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-LFBGA
包裝： 帶卷 (TR)
配用： AT91SAM7SE-EK-ND - EVAL BOARD FOR AT91SAM7SE
AT91SAM-ICE-ND - EMULATOR FOR AT91 ARM7/ARM9
23
6222GS–ATARM–6-Sep-11
SAM7SE512/256/32 Summary
A first level of address decoding is performed by the Memory Controller, i.e., by the implementa-
tion of the Advanced System Bus (ASB) with additional features.
Decoding splits the 4G bytes of address space into 16 areas of 256M bytes. The areas 1 to 8 are
directed to the EBI that associates these areas to the external chip selects NC0 to NCS7. The
area 0 is reserved for the addressing of the internal memories, and a second level of decoding
provides 1M byte of internal memory area. The area 15 is reserved for the peripherals and pro-
vides access to the Advanced Peripheral Bus (APB).
Other areas are unused and performing an access within them provides an abort to the master
requesting such an access.
8.1
Embedded Memories
8.1.1
Internal Memories
8.1.1.1
Internal SRAM
The SAM7SE512/256 embeds a high-speed 32-Kbyte SRAM bank. The SAM7SE32 embeds a
high-speed 8-Kbyte SRAM bank. After reset and until the Remap Command is performed, the
SRAM is only accessible at address 0x0020 0000. After Remap, the SRAM also becomes avail-
able at address 0x0.
8.1.1.2
Internal ROM
The SAM7SE512/256/32 embeds an Internal ROM. At any time, the ROM is mapped at address
0x30 0000. The ROM contains the FFPI and the SAM-BA boot program.
8.1.1.3
Internal Flash
The SAM7SE512 features two banks of 256 Kbytes of Flash.
The SAM7SE256 features one bank of 256 Kbytes of Flash.
The SAM7SE32 features one bank of 32 Kbytes of Flash.
At any time, the Flash is mapped to address 0x0010 0000.
A general purpose NVM (GPNVM) bit is used to boot either on the ROM (default) or from the
Flash.
This GPNVM bit can be cleared or set respectively through the commands “Clear General-pur-
pose NVM Bit” and “Set General-purpose NVM Bit” of the EFC User Interface.
Setting the GPNVM bit 2 selects the boot from the Flash, clearing it selects the boot from the
ROM. Asserting ERASE clears the GPNVM bit 2 and thus selects the boot from the ROM by
default.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT91SAM7SE512 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Thumb-based Microcontrollers
AT91SAM7SE512_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Incorporates the ARM7TDMI ARM Thumb Processor
AT91SAM7SE512_09 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Product Description
AT91SAM7SE512-AU 功能描述:ARM微控制器 - MCU 512kB Flash 32kB SRAM 48MHz 4 PWM RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
AT91SAM7SE512-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 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
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