参数资料
型号: EFM32G842F128
厂商: Energy Micro
文件页数: 89/136页
文件大小: 0K
描述: IC MCU 32BIT 128KB FLASH 64LQFP
标准包装: 1
系列: 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,LCD,POR,PWM,WDT
输入/输出数: 53
程序存储器容量: 128KB(128K x 8)
程序存储器类型: 闪存
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.8 V
数据转换器: A/D 8x12b,D/A 2x12b
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: 914-1028-6
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
56
www.energymicro.com
3.4.9 CLREX
Clear Exclusive.
3.4.9.1 Syntax
CLREX{cond}
where:
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
3.4.9.2 Operation
Use CLREX to make the next STREX, STREXB, or STREXH instruction write 1 to its destination register and
fail to perform the store. It is useful in exception handler code to force the failure of the store exclusive if
the exception occurs between a load exclusive instruction and the matching store exclusive instruction
in a synchronization operation.
See Section 2.2.7 (p. 20) for more information.
3.4.9.3 Condition flags
These instructions do not change the flags.
3.4.9.4 Examples
CLREX
3.5 General data processing instructions
Table 3.8 (p. 56) shows the data processing instructions:
Table 3.8. Data processing instructions
Mnemonic
Brief description
See
ADC
Add with Carry
ADD
Add
ADDW
Add
AND
Logical AND
ASR
Arithmetic Shift Right
BIC
Bit Clear
CLZ
Count leading zeros
CMN
Compare Negative
CMP
Compare
EOR
Exclusive OR
LSL
Logical Shift Left
LSR
Logical Shift Right
MOV
Move
MOVT
Move Top
MOVW
Move 16-bit constant
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