参数资料
型号: EFM32TG232F32
厂商: Energy Micro
文件页数: 26/136页
文件大小: 0K
描述: IC MCU 32BIT 32KB FLASH 64LQFP
特色产品: EFM32 Tiny Gecko
标准包装: 1
系列: Tiny Gecko
核心处理器: ARM? Cortex?-M3
芯体尺寸: 32-位
速度: 32MHz
连通性: I²C,IrDA,智能卡,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,I²S,POR,PWM,WDT
输入/输出数: 53
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 4K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.8 V
数据转换器: A/D 8x12b,D/A 1x12b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 64-TQFP
包装: 标准包装
其它名称: 914-1030-6
...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
相关PDF资料
PDF描述
P80C32X2FA,512 IC 80C51 MCU 256 ROMLESS 44PLCC
LPC1224FBD64/101,1 MCU 32BIT 32K FLASH 4K 64-LQFP
R5F72165GDFA#V0 MCU 512K FLASH 64K 176-LQFP
R5F72165ADFA#V0 MCU 512K FLASH 64K 176-LQFP
EFM32TG222F32 IC MCU 32BIT 32KB FLASH 48LQFP
相关代理商/技术参数
参数描述
EFM32TG232F32-QFP64 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 32KB FLASH 64TQFP
EFM32TG232F32-QFP64T 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, TINY GECKO - Trays
EFM32TG232F32-QFP64-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 64TQFP
EFM32TG232F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 64TQFP
EFM32TG232F8 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 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