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參數資料
型號： EFM32-TG840F32-SK
廠商： Energy Micro
文件頁數： 70/136頁
文件大小： 0K
描述： IC MICRO KIT GECKO 64QFN
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： 64-QFN
工具箱內容： (2) 914-1036-2-ND - MCU 32BIT 32KB FLASH 64-QFN
其它名稱： 914-1020
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
39
www.energymicro.com
#constant
where constant can be:
any constant that can be produced by shifting an 8#bit value left by any number of bits within a 32#bit
word
any constant of the form 0x00XY00XY
any constant of the form 0xXY00XY00
any constant of the form 0xXYXYXYXY.
Note
In the constants shown above, X and Y are hexadecimal digits.
In addition, in a small number of instructions, constant can take a wider range of values. These are
described in the individual instruction descriptions.
When an Operand2 constant is used with the instructions MOVS, MVNS, ANDS, ORRS, ORNS, EORS, BICS,
TEQ
or TST, the carry flag is updated to bit[31] of the constant, if the constant is greater than 255 and
can be produced by shifting an 8-bit value. These instructions do not affect the carry flag if Operand2
is any other constant.
3.3.3.1.1 Instruction substitution
Your assembler might be able to produce an equivalent instruction in cases where you specify a constant
that is not permitted. For example, an assembler might assemble the instruction CMP Rd, #0xFFFFFFFE
as the equivalent instruction CMN Rd, #0x2.
3.3.3.2 Register with optional shift
You specify an Operand2 register in the form:
Rm {, shift}
where:
Rm
is the register holding the data for the second operand.
shift
is an optional shift to be applied to Rm. It can be one of:
ASR #n
arithmetic shift right n bits, 1 # n # 32.
LSL #n
logical shift left n bits, 1 # n # 31.
LSR #n
logical shift right n bits, 1 # n # 32.
ROR #n
rotate right n bits, 1 # n # 31.
RRX
rotate right one bit, with extend.
-
if omitted, no shift occurs, equivalent to LSL #0.
If you omit the shift, or specify LSL #0, the instruction uses the value in Rm.
If you specify a shift, the shift is applied to the value in Rm, and the resulting 32-bit value is used by the
instruction. However, the contents in the register Rm remains unchanged. Specifying a register with shift
also updates the carry flag when used with certain instructions. For information on the shift operations
and how they affect the carry flag, see Section 3.3.4 (p. 39)
3.3.4 Shift Operations
Register shift operations move the bits in a register left or right by a specified number of bits, the shift
length. Register shift can be performed:
相關PDF資料
PDF描述
EFM32-TG822F32-SK IC MICRO KIT GECKO 48LQFP
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
相關代理商/技術參數
參數描述
EFM32TG840F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 64QFN
EFM32TG840F8 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
EFM32TG840F8-QFN64 制造商:Energy Micro AS 功能描述:8 FLASH, USART + UART 2, QFN64 - Tape and Reel 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 64QFN
EFM32TG840F8-QFN64T 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, TINY GECKO - Trays
EFM32TG840F8-QFN64-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 64QFN
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