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參數資料
型號： EFM32-TG222F32-SK
廠商： Energy Micro
文件頁數： 131/136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： 914-1021
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
94
www.energymicro.com
If the interrupt signal is still asserted, the state of the interrupt does not change. Otherwise, the state
of the interrupt changes to inactive.
4.2.10 NVIC design hints and tips
Ensure software uses correctly aligned register accesses. The processor does not support unaligned
accesses to NVIC registers. See the individual register descriptions for the supported access sizes.
A interrupt can enter pending state even it is disabled.
Before programming VTOR to relocate the vector table, ensure the vector table entries of the new vector
table are setup for fault handlers, NMI and all enabled exception like interrupts. For more information
4.2.10.1 NVIC programming hints
Software uses the CPSIE I and CPSID I instructions to enable and disable interrupts. The CMSIS
provides the following intrinsic functions for these instructions:
void __disable_irq(void)
// Disable Interrupts
void __enable_irq(void)
// Enable Interrupts
In addition, the CMSIS provides a number of functions for NVIC control, including:
Table 4.11. CMSIS functions for NVIC control
CMSIS interrupt control function
Description
void NVIC_SetPriorityGrouping(uint32_t
priority_grouping)
Set the priority grouping
void NVIC_EnableIRQ(IRQn_t IRQn)
Enable IRQn
void NVIC_DisableIRQ(IRQn_t IRQn)
Disable IRQn
uint32_t NVIC_GetPendingIRQ (IRQn_t IRQn)
Return true (IRQ-Number) if IRQn is pending
void NVIC_SetPendingIRQ (IRQn_t IRQn)
Set IRQn pending
void NVIC_ClearPendingIRQ (IRQn_t IRQn)
Clear IRQn pending status
uint32_t NVIC_GetActive (IRQn_t IRQn)
Return the IRQ number of the active interrupt
void NVIC_SetPriority (IRQn_t IRQn, uint32_t
priority)
Set priority for IRQn
uint32_t NVIC_GetPriority (IRQn_t IRQn)
Read priority of IRQn
void NVIC_SystemReset (void)
Reset the system
For more information about these functions see the CMSIS documentation.
4.3 System control block
The System control block (SCB) provides system implementation information, and system control.
This includes configuration, control, and reporting of the system exceptions. The system control block
registers are:
Table 4.12. Summary of the system control block registers
Address
Name
Type
Required
privilege
Reset value
Description
0xE000E008
ACTLR
RW
Privileged
0x00000000
相關PDF資料
PDF描述
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"
7810 0.20MM ECAP COND PAD .20MM 7.7" X 10"
相關代理商/技術參數
參數描述
EFM32TG222F32-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 32KB FLASH 48TQFP
EFM32TG222F8 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
EFM32TG222F8-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
EFM32TG222F8-QFP48T 制造商:Energy Micro AS 功能描述:32 BIT ARM MPU, TINY GECKO - Trays
EFM32TG222F8-QFP48-T 制造商:Energy Micro AS 功能描述:IC MCU 32BIT 8KB FLASH 48TQFP
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