参数资料
型号: 71M6521DE-IGT/F
厂商: Maxim Integrated
文件页数: 35/107页
文件大小: 0K
描述: IC ENERGY METER 16K FLASH 64LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
系列: Single Converter Technology®
测量误差: 0.4%
电源电压: 3 V ~ 3.6 V
测量仪表类型: 单相,双相
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 管件
71M6521DE/DH/FE Data Sheet
Interrupt Priority Level Structure
All interrupt sources are combined in groups, as shown in Table 48:
Group
0
External interrupt 0
Serial channel 1 interrupt
1
2
3
4
5
Timer 0 interrupt
External interrupt 1
Timer 1 interrupt
Serial channel 0 interrupt
-
-
-
-
-
-
External interrupt 2
External interrupt 3
External interrupt 4
External interrupt 5
External interrupt 6
Table 48: Priority Level Groups
Each group of interrupt sources can be programmed individually to one of four priority levels by setting or clearing
one bit in the special function register IP0 and one in IP1 . If requests of the same priority level are received
simultaneously, an internal polling sequence as per Table 52 determines which request is serviced first.
An overview of the interrupt structure is given in Figure 6.
IEN enable bits must be set to permit any of these interrupts to occur. Likewise, each interrupt has its own flag bit that
is set by the interrupt hardware and is reset automatically by the MPU interrupt handler (0 through 5). XFER_BUSY
and RTC_1SEC, which are OR-ed together, have their own enable and flag bits in addition to the interrupt 6 enable
and flag bits (see Table 47) and these interrupts must be cleared by the MPU software.
Interrupt Priority 0 Register ( IP0 )
MSB
LSB
--
WDTS
IP0.5
IP0.4
IP0.3
IP0.2
IP0.1
IP0.0
Table 49: The IP0 Register
Note: WDTS is not used for interrupt controls
Interrupt Priority 1 Register ( IP1 )
MSB
LSB
-
-
IP1.5
IP1.4
IP1.3
IP1.2
IP1.1
IP1.0
Table 50: The IP1 Register:
IP1.x
0
0
1
1
IP0.x
0
1
0
1
Priority Level
Level0 (lowest)
Level1
Level2
Level3 (highest)
Table 51: Priority Levels
Rev 3
Page: 35 of 107
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