參數(shù)資料
型號： EFM32TG110F32
廠商： Energy Micro
文件頁數(shù)： 111/136頁
文件大?。?/td> 0K
描述： MCU 32BIT 32KB FLASH 24-QFN
特色產(chǎn)品： EFM32 Tiny Gecko
標準包裝： 1
系列： Tiny Gecko
核心處理器： ARM? Cortex?-M3
芯體尺寸： 32-位
速度： 32MHz
連通性： EBI/EMI，I²C，IrDA，智能卡，SPI，UART/USART
外圍設(shè)備： 欠壓檢測/復位，DMA，POR，PWM，WDT
輸入/輸出數(shù)： 17
程序存儲器容量： 32KB（32K x 8）
程序存儲器類型： 閃存
RAM 容量： 4K x 8
電壓 - 電源 (Vcc/Vdd)： 1.8 V ~ 3.8 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 2x12b，D/A 1x12b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 24-VQFN 裸露焊盤
包裝： 標準包裝
其它名稱： 914-1033-6
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
76
www.energymicro.com
3.9.2.2 Operation
Use the CBZ or CBNZ instructions to avoid changing the condition code flags and to reduce the number
of instructions.
CBZ Rn, label
does not change condition flags but is otherwise equivalent to:
CMP
Rn, #0
BEQ
label
CBNZ Rn, label
does not change condition flags but is otherwise equivalent to:
CMP
Rn, #0
BNE
label
3.9.2.3 Restrictions
The restrictions are:
Rn must be in the range of R0 to R7
the branch destination must be within 4 to 130 bytes after the instruction
these instructions must not be used inside an IT block.
3.9.2.4 Condition flags
These instructions do not change the flags.
3.9.2.5 Examples
CBZ
R5, target ; Forward branch if R5 is zero
CBNZ
R0, target ; Forward branch if R0 is not zero
3.9.3 IT
If-Then condition instruction.
3.9.3.1 Syntax
IT{x{y{z}}} cond
where:
x
specifies the condition switch for the second instruction in the IT block.
y
specifies the condition switch for the third instruction in the IT block.
z
specifies the condition switch for the fourth instruction in the IT block.
cond
specifies the condition for the first instruction in the IT block.
The condition switch for the second, third and fourth instruction in the IT block can be either:
T
Then. Applies the condition cond to the instruction.
E
Else. Applies the inverse condition of cond to the instruction.
Note
It is possible to use AL (the always condition) for cond in an IT instruction. If this is done,
all of the instructions in the IT block must be unconditional, and each of x, y, and z must be
T
or omitted but not E.
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EFM32TG110F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 24QFN
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