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| 型号： | 78M6612-SOCKET64 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/46页 |
| 文件大小： | 0K |
| 描述： | BOARD 78M6612 64PIN LQFP |
| 标准包装： | 1 |
| 系列： | * |
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DS_6612_001
1.5.10 Hardware Watchdog Timer
78M6612 Data Sheet
V3P3
V3P3 - 10mV
V3P3 -
400mV
VBIAS
V1
WDT dis-
abled
Normal
operation,
WDT
enabled
In addition to the basic watchdog timer included in the 80515 MPU, an
independent, robust, fixed-duration, watchdog timer (WDT) is included in
the device. It uses the crystal oscillator as its time base and must be
refreshed by the MPU firmware at least every 1.5 seconds. When not
refreshed on time the WDT overflows, and the part is reset as if the
RESET pin were pulled high, except that the I/O RAM bits will be
maintained. 4096 oscillator cycles (or 125 ms) after the WDT overflow,
the MPU will be launched from program address 0x0000. Asserting
ICR_E will deactivate the WDT.
The WDT can also be disabled by tying the V1 pin to V3P3. Of course,
this also deactivates V1 power fault detection. Since there is no method
in firmware to disable the crystal oscillator or the WDT, it is guaranteed
that whatever state the part might find itself in, upon WDT overflow, the
part will be reset to a known state.
Battery
modes
0V
Figure 4: Functions Defined by V1
1.5.11 Test Ports (TXUXOUT pin)
One out of 16 digital or 8 analog signals can be selected to be output on the TMUXOUT pin. The
function of the multiplexer is described in the applicable firmware documentation.
Rev 2
17
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相关代理商/技术参数 |
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|---|---|
| 78M6612-SOCKET68 | 功能描述:计量片上系统 - SoC 78M6612 68PIN QFN PROGRAM BOARD 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 |
| 78M6612SP-EVM-1 | 功能描述:开发板和工具包 - 8051 78M6612 Eval Kit RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 78M6613 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Four Sensor Inputs—V3P3A Referenced 32KB Flash with Security |
| 78M6613_12 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Phase AC Power Measurement IC |
| 78M6613-EVM | 制造商:Maxim Integrated Products 功能描述:78M6613 EVAL BOARD - Boxed Product (Development Kits) |
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