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| 型号： | 71M6511H-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 27/98页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER RESIDENT 64-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 160 |
| 系列： | * |
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71M6511/71M6511H
Single-Phase Energy Meter IC
A Maxim Integrated Products Brand
DATA SHEET
NOVEMBER 2010
Refreshing the WD Timer: The watchdog timer must be refreshed regularly to prevent the reset request signal from
becoming active. This requirement imposes an obligation on the programmer to issue two instructions. The first instruction
sets WDT and the second instruction sets SWDT . The maximum delay allowed between setting WDT and SWDT is 12 clock
cycles. If this period has expired and SWDT has not been set, WDT is automatically reset, otherwise the watchdog timer is
reloaded with the content of the WDTREL register and WDT is automatically reset. Since the WDT requires exact timing,
firmware needs to be designed with special care in order to avoid unwanted WDT resets. TERIDIAN strongly discourages the
use of the software WDT.
Special Function Registers for the WD Timer
Interrupt Enable 0 Register ( IEN0 ):
MSB
LSB
EAL
WDT
ET2
ES0
ET1
EX1
ET0
EX0
Table 26: The IEN0 Register (see also Table 34)
Bit
IEN0.6
Symbol
WDT
Function
Watchdog timer refresh flag.
Set to initiate a refresh of the watchdog timer. Must be set directly before SWDT
is set to prevent an unintentional refresh of the watchdog timer. WDT is reset by
hardware 12 clock cycles after it has been set.
Table 27: The IEN0 Bit Functions (see also Table 34)
Note: The remaining bits in the IEN0 register are not used for watchdog control
Interrupt Enable 1 Register ( IEN1 ):
MSB
LSB
EXEN2
SWDT
EX6
EX5
EX4
EX3
EX2
Table 28: The IEN1 Register (see also Tables 35/36)
Bit
IEN1.6
Symbol
SWDT
Function
Watchdog timer start/refresh flag.
Set to activate/refresh the watchdog timer. When directly set after setting WDT , a
watchdog timer refresh is performed. Bit SWDT is reset by the hardware 12 clock
cycles after it has been set.
Table 29: The IEN1 Bit Functions (see also Tables 35/36)
Note: The remaining bits in the IEN1 register are not used for watchdog control
Page: 27 of 98
? 2005–2010 Teridian Semiconductor Corporation
V2.7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6511H-IGTR | 制造商:Maxim Integrated Products 功能描述:RESID. HI PRECISION METR (1P, .1%) - Tape and Reel |
| 71M6511H-IGTR/F | 功能描述:计量片上系统 - SoC Highly Integrated SoC w/MCU Core RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6511-IGT | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Single-Phase Energy Meter IC |
| 71M6511-IGT/F | 功能描述:计量片上系统 - SoC Highly Integrated SoC w/MCU Core RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6511-IGT/F1 | 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
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