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參數(shù)資料
型號: EFM32-TG210F32-SK
廠商: Energy Micro
文件頁數(shù): 26/136頁
文件大小: 0K
描述: IC MICRO KIT GECKO 32QFN
標(biāo)準(zhǔn)包裝: 1
系列: Tiny Gecko
套件類型: 微控制器
值: 2 件 - 閃存 - 32KB
包裝: 紙板盒
安裝類型: 表面貼裝
包括封裝: 32-QFN
工具箱內(nèi)容: (2) 914-1034-2-ND - MCU 32BIT 32KB FLASH 32-QFN
其它名稱: 914-1019
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
121
www.energymicro.com
; R1 = region number
; R2 = size/enable
; R3 = attributes
; R4 = address
LDR R0,=MPU_RNR
; 0xE000ED98, MPU region number register
STR R1, [R0, #0x0]
; Region Number
BIC R2, R2, #1
; Disable
STRH R2, [R0, #0x8]
; Region Size and Enable
STR R4, [R0, #0x4]
; Region Base Address
STRH R3, [R0, #0xA]
; Region Attribute
ORR R2, #1
; Enable
STRH R2, [R0, #0x8]
; Region Size and Enable
Software must use memory barrier instructions:
before MPU setup if there might be outstanding memory transfers, such as buffered writes, that might
be affected by the change in MPU settings
after MPU setup if it includes memory transfers that must use the new MPU settings.
However, memory barrier instructions are not required if the MPU setup process starts by entering an
exception handler, or is followed by an exception return, because the exception entry and exception
return mechanism cause memory barrier behavior.
Software does not need any memory barrier instructions during MPU setup, because it accesses the
MPU through the PPB, which is a Strongly-Ordered memory region.
For example, if you want all of the memory access behavior to take effect immediately after the
programming sequence, use a DSB instruction and an ISB instruction. A DSB is required after changing
MPU settings, such as at the end of context switch. An ISB is required if the code that programs the
MPU region or regions is entered using a branch or call. If the programming sequence is entered using
a return from exception, or by taking an exception, then you do not require an ISB.
4.5.8.2 Updating an MPU region using multi-word writes
You can program directly using multi-word writes, depending on how the information is divided. Consider
the following reprogramming:
; R1 = region number
; R2 = address
相關(guān)PDF資料
PDF描述
1267 X 6" TAPE ALUMINUM FOIL 6" X 1FT
7810 0.25MM ECAP COND PAD .25MM 7.7" X 10"
7810 0.20MM ECAP COND PAD .20MM 7.7" X 10"
1170 X 6" TAPE FOIL .002" 6" X 18YDS
EFM32-TG110F32-SK IC MICRO KIT GECKO 24QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EFM32TG210F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 32QFN
EFM32TG210F8 功能描述:ARM微控制器 - MCU 8KB Flash 2KB RAM 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 最大時鐘頻率:72 MHz 程序存儲器大小: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
EFM32TG210F8-QFN32 制造商:Energy Micro AS 功能描述:TINY GECKO MCU - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 32QFN
EFM32TG210F8-QFN32T 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, TINY GECKO - Trays
EFM32TG210F8-QFN32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 32QFN
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