参数资料
型号: EFM32G222F128
厂商: Energy Micro
文件页数: 6/136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
103
www.energymicro.com
Handler
Field
Register description
SysTick
PRI_15
Each PRI_N field is 8 bits wide, but the EFM32 implements only bits[7:5] of each field, and bits[4:0] read
as zero and ignore writes.
4.3.9.1 System Handler Priority Register 1
The bit assignments are:
31
24 23
0
Reserved
PRI_6
PRI_5
PRI_4
16 15
8 7
Table 4.22. SHPR1 register bit assignments
Bits
Name
Function
[31:24]
PRI_7
Reserved
[23:16]
PRI_6
Priority of system handler 6, usage fault
[15:8]
PRI_5
Priority of system handler 5, bus fault
[7:0]
PRI_4
Priority of system handler 4, memory management fault
4.3.9.2 System Handler Priority Register 2
The bit assignments are:
31
24 23
0
PRI_11
Reserved
Table 4.23. SHPR2 register bit assignments
Bits
Name
Function
[31:24]
PRI_11
Priority of system handler 11, SVCall
[23:0]
-
Reserved
4.3.9.3 System Handler Priority Register 3
The bit assignments are:
PRI_15
31
15
0
16
24 23
PRI_14
Reserved
Table 4.24. SHPR3 register bit assignments
Bits
Name
Function
[31:24]
PRI_15
Priority of system handler 15, SysTick exception
[23:16]
PRI_14
Priority of system handler 14, PendSV
[15:0]
-
Reserved
4.3.10 System Handler Control and State Register
The SHCSR enables the system handlers, and indicates:
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