参数资料
型号: EFM32G222F128
厂商: Energy Micro
文件页数: 134/136页
文件大小: 0K
描述: IC MCU 32BIT 128KB FLASH 48LQFP
特色产品: EFM32 Gecko
标准包装: 1
系列: Gecko
核心处理器: ARM? Cortex?-M3
芯体尺寸: 32-位
速度: 32MHz
连通性: I²C,IrDA,智能卡,SPI,UART/USART
外围设备: 欠压检测/复位,DMA,POR,PWM,WDT
输入/输出数: 37
程序存储器容量: 128KB(128K x 8)
程序存储器类型: 闪存
RAM 容量: 16K x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 3.8 V
数据转换器: A/D 4x12b,D/A 1x12b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 48-TQFP
包装: 标准包装
其它名称: 914-1027-6
...the world's most energy friendly microcontrollers
2011-02-04 - d0002_Rev1.00
97
www.energymicro.com
See the register summary in Table 4.12 (p. 94), and the Type descriptions in Table 4.15 (p. 97)
, for the ICSR attributes. The bit assignments are:
31
28
22 21
9
10
0
VECTACTIVE
30 29
27 26
23
24
12 11
VECTPENDING
NMIPENDSET
PENDSVSET
PENDSVCLR
Reserved for Debug
ISRPENDING
Reserved
RETTOBASE
25
PENDSTSET
PENDSTCLR
8
Reserved
Table 4.15. ICSR bit assignments
Bits
Name
Type
Function
[31]
NMIPENDSET
RW
NMI set-pending bit.
Write:
0 = no effect1 = changes NMI exception state to pending.
Read:
0 = NMI exception is not pending
1 = NMI exception is pending.
Because NMI is the highest-priority exception, normally the processor enter the
NMI exception handler as soon as it registers a write of 1 to this bit, and entering
the handler clears this bit to 0. A read of this bit by the NMI exception handler
returns 1 only if the NMI signal is reasserted while the processor is executing that
handler.
[30:29]
-
Reserved.
[28]
PENDSVSET
RW
PendSV set-pending bit.
Write:
0 = no effect1 = changes PendSV exception state to pending.
Read:
0 = PendSV exception is not pending
1 = PendSV exception is pending.
Writing 1 to this bit is the only way to set the PendSV exception state to pending.
[27]
PENDSVCLR
WO
PendSV clear-pending bit.
Write:
0 = no effect1 = removes the pending state from the PendSV exception.
[26]
PENDSTSET
RW
SysTick exception set-pending bit.
Write:
0 = no effect1 = changes SysTick exception state to pending.
Read:
0 = SysTick exception is not pending
1 = SysTick exception is pending.
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