參數(shù)資料
型號: EFM32TG230F32
廠商: Energy Micro
文件頁數(shù): 69/136頁
文件大?。?/td> 0K
描述: MCU 32BIT 32KB FLASH 64-QFN
特色產品: 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
外圍設備: 欠壓檢測/復位,DMA,POR,PWM,WDT
輸入/輸出數(shù): 56
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)轉換器: A/D 8x12b,D/A 2x12b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-VFQFN 裸露焊盤
包裝: 標準包裝
其它名稱: 914-1035-6
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
38
www.energymicro.com
Special register
Access
CMSIS function
Write
void __set_PRIMASK (uint32_t
value)
Read
uint32_t __get_FAULTMASK (void)
FAULTMASK
Write
void __set_FAULTMASK (uint32_t
value)
Read
uint32_t __get_BASEPRI (void)
BASEPRI
Write
void __set_BASEPRI (uint32_t
value)
Read
uint32_t __get_CONTROL (void)
CONTROL
Write
void __set_CONTROL (uint32_t
value)
Read
uint32_t __get_MSP (void)
MSP
Write
void __set_MSP (uint32_t
TopOfMainStack)
Read
uint32_t __get_PSP (void)
PSP
Write
void __set_PSP (uint32_t
TopOfProcStack)
3.3 About the instruction descriptions
This section gives more information about using the instructions.
3.3.1 Operands
An instruction operand can be an ARM register, a constant, or another instruction-specific parameter.
Instructions act on the operands and often store the result in a destination register. When there is a
destination register in the instruction, it is usually specified before the operands.
Operands in some instructions are flexible in that they can either be a register or a constant. See
3.3.2 Restrictions when using PC or SP
Many instructions have restrictions on whether you can use the Program Counter (PC) or Stack Pointer
(SP) for the operands or destination register. See instruction descriptions for more information.
Note
Bit[0] of any address you write to the PC with a BX, BLX, LDM, LDR, or POP instruction must
be 1 for correct execution, because this bit indicates the required instruction set, and the
Cortex-M3 processor only supports Thumb instructions.
3.3.3 Flexible second operand
Many general data processing instructions have a flexible second operand. This is shown as Operand2
in the descriptions of the syntax of each instruction.
Operand2
can be a:
3.3.3.1 Constant
You specify an Operand2 constant in the form:
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