参数资料
型号: EFM32-TG-STK3300
厂商: Energy Micro
文件页数: 122/136页
文件大小: 0K
描述: KIT STARTER EFM32 GECKO
特色产品: EFM32 Tiny Gecko
标准包装: 1
系列: EFM®32
类型: MCU
适用于相关产品: EFM32-TGXXX
所含物品: 板,线缆,CD 和文档
其它名称: 914-1018
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
86
www.energymicro.com
; by locating it via the stacked PC)
3.10.11 WFE
Wait For Event.
3.10.11.1 Syntax
WFE{cond}
where:
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
3.10.11.2 Operation
WFE
is a hint instruction.
If the event register is 0, WFE suspends execution until one of the following events occurs:
an exception, unless masked by the exception mask registers or the current priority level
an exception enters the Pending state, if SEVONPEND in the System Control Register is set
a Debug Entry request, if Debug is enabled
an event signaled by a peripheral or another processor in a multiprocessor system using the SEV
instruction.
If the event register is 1, WFE clears it to 0 and returns immediately.
For more information see Section 2.5 (p. 30) .
3.10.11.3 Condition flags
This instruction does not change the flags.
3.10.11.4 Examples
WFE
; Wait for event
3.10.12 WFI
Wait for Interrupt.
3.10.12.1 Syntax
WFI{cond}
where:
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
3.10.12.2 Operation
WFI
is a hint instruction that suspends execution until one of the following events occurs:
an exception
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