参数资料
型号: EFM32-TG822F32-SK
厂商: Energy Micro
文件页数: 114/136页
文件大小: 0K
描述: IC MICRO KIT GECKO 48LQFP
标准包装: 1
系列: Tiny Gecko
套件类型: 微控制器
值: 2 件 - 闪存 - 32KB
包装: 纸板盒
安装类型: 表面贴装
包括封装: 48-LQFP
其它名称: 914-1023
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
79
www.energymicro.com
Rm must not be SP and must not be PC
when any of these instructions is used inside an IT block, it must be the last instruction of the IT block.
3.9.4.4 Condition flags
These instructions do not change the flags.
3.9.4.5 Examples
ADR.W
R0, BranchTable_Byte
TBB
[R0, R1]
; R1 is the index, R0 is the base address of the
; branch table
Case1
; an instruction sequence follows
Case2
; an instruction sequence follows
Case3
; an instruction sequence follows
BranchTable_Byte
DCB
0
; Case1 offset calculation
DCB
((Case2-Case1)/2)
; Case2 offset calculation
DCB
((Case3-Case1)/2)
; Case3 offset calculation
TBH
[PC, R1, LSL #1]
; R1 is the index, PC is used as base of the
; branch table
BranchTable_H
DCI
((CaseA - BranchTable_H)/2)
; CaseA offset calculation
DCI
((CaseB - BranchTable_H)/2)
; CaseB offset calculation
DCI
((CaseC - BranchTable_H)/2)
; CaseC offset calculation
CaseA
; an instruction sequence follows
CaseB
; an instruction sequence follows
CaseC
; an instruction sequence follows
3.10 Miscellaneous instructions
Table 3.13 (p. 79) shows the remaining Cortex-M3 instructions:
Table 3.13. Miscellaneous instructions
Mnemonic
Brief description
See
BKPT
Breakpoint
CPSID
Change Processor State, Disable Interrupts
CPSIE
Change Processor State, Enable Interrupts
DMB
Data Memory Barrier
DSB
Data Synchronization Barrier
ISB
Instruction Synchronization Barrier
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