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參數資料
型號： EFM32-TG822F32-SK
廠商： Energy Micro
文件頁數： 102/136頁
文件大小： 0K
描述： IC MICRO KIT GECKO 48LQFP
標準包裝： 1
系列： Tiny Gecko
套件類型： 微控制器
值： 2 件 - 閃存 - 32KB
包裝： 紙板盒
安裝類型： 表面貼裝
包括封裝： 48-LQFP
其它名稱： 914-1023
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
68
www.energymicro.com
3.6.1.5 Examples
MUL
R10, R2, R5
; Multiply, R10 = R2 x R5
MLA
R10, R2, R1, R5 ; Multiply with accumulate, R10 = (R2 x R1) + R5
MULS
R0, R2, R2
; Multiply with flag update, R0 = R2 x R2
MULLT
R2, R3, R2
; Conditionally multiply, R2 = R3 x R2
MLS
R4, R5, R6, R7
; Multiply with subtract, R4 = R7 - (R5 x R6)
3.6.2 UMULL, UMLAL, SMULL, and SMLAL
Signed and Unsigned Long Multiply, with optional Accumulate, using 32#bit operands and producing
a 64#bit result.
3.6.2.1 Syntax
op{cond} RdLo, RdHi, Rn, Rm
where:
op
is one of:
UMULL
Unsigned Long Multiply.
UMLAL
Unsigned Long Multiply, with Accumulate.
SMULL
Signed Long Multiply.
SMLAL
Signed Long Multiply, with Accumulate.
cond
is an optional condition code, see Section 3.3.7 (p. 43) .
RdHi, RdLo
are the destination registers. For UMLAL and SMLAL they also hold
the accumulating value.
Rn, Rm
are registers holding the operands.
3.6.2.2 Operation
The UMULL instruction interprets the values from Rn and Rm as unsigned integers. It multiplies these
integers and places the least significant 32 bits of the result in RdLo, and the most significant 32 bits
of the result in RdHi.
The UMLAL instruction interprets the values from Rn and Rm as unsigned integers. It multiplies these
integers, adds the 64#bit result to the 64#bit unsigned integer contained in RdHi and RdLo, and writes
the result back to RdHi and RdLo.
The SMULL instruction interprets the values from Rn and Rm as two’s complement signed integers. It
multiplies these integers and places the least significant 32 bits of the result in RdLo, and the most
significant 32 bits of the result in RdHi.
The SMLAL instruction interprets the values from Rn and Rm as two’s complement signed integers. It
multiplies these integers, adds the 64#bit result to the 64#bit signed integer contained in RdHi and RdLo,
and writes the result back to RdHi and RdLo.
3.6.2.3 Restrictions
In these instructions:
do not use SP and do not use PC
RdHi and RdLo must be different registers.
3.6.2.4 Condition flags
These instructions do not affect the condition code flags.
相關PDF資料
PDF描述
EFM32-TG222F32-SK IC MICRO KIT GECKO 48LQFP
EFM32-TG230F32-SK IC MICRO KIT GECKO 64QFN
EFM32-TG210F32-SK IC MICRO KIT GECKO 32QFN
1267 X 6" TAPE ALUMINUM FOIL 6" X 1FT
7810 0.25MM ECAP COND PAD .25MM 7.7" X 10"
相關代理商/技術參數
參數描述
EFM32TG822F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 48TQFP
EFM32TG822F8 功能描述:ARM微控制器 - MCU 8KB Flash 2KB RAM RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數據總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數據 RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風格:SMD/SMT
EFM32TG822F8-QFP48 制造商:Energy Micro AS 功能描述:TINY GECKO MCU - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 48TQFP
EFM32TG822F8-QFP48T 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, TINY GECKO - Trays
EFM32TG822F8-QFP48-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 48TQFP
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