参数资料
型号: EFM32G222F128
厂商: Energy Micro
文件页数: 78/136页
文件大小: 0K
描述: IC MCU 32BIT 128KB FLASH 48LQFP
特色产品: EFM32 Gecko
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,POR,PWM,WDT
输入/输出数: 37
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 4x12b,D/A 1x12b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 48-TQFP
包装: 标准包装
其它名称: 914-1027-6
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
46
www.energymicro.com
Mnemonic
Brief description
See
STR{type}
Store Register using register offset
STR{type}T
Store Register with unprivileged access
STREX{type}
Store Register Exclusive
3.4.1 ADR
Load PC-relative address.
3.4.1.1 Syntax
ADR{cond} Rd, label
where:
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
Rd
is the destination register.
label
is a PC#relative expression. See Section 3.3.6 (p. 42) .
3.4.1.2 Operation
ADR
determines the address by adding an immediate value to the PC, and writes the result to the
destination register.
ADR
produces position#independent code, because the address is PC#relative.
If you use ADR to generate a target address for a BX or BLX instruction, you must ensure that bit[0] of
the address you generate is set to1 for correct execution.
Values of label must be within the range of #4095 to +4095 from the address in the PC.
Note
You might have to use the .W suffix to get the maximum offset range or to generate
addresses that are not word-aligned. See Section 3.3.8 (p. 45) .
3.4.1.3 Restrictions
Rd
must not be SP and must not be PC.
3.4.1.4 Condition flags
This instruction does not change the flags.
3.4.1.5 Examples
ADR
R1, TextMessage
; Write address value of a location labelled as
; TextMessage to R1
3.4.2 LDR and STR, immediate offset
Load and Store with immediate offset, pre-indexed immediate offset, or post-indexed immediate offset.
3.4.2.1 Syntax
op{type}{cond} Rt, [Rn {, #offset}]
; immediate offset
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