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| 型号： | 71M6531F-IMR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 89/121页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 256KB 68-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
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FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
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Select the values for SLOT0_SEL[3:0] = 0, SLOT1_SEL[3:0] = 1, SLOT2_SEL[3:0] = 2, SLOT3_SEL[3:0]
= 3
Select the values for SLOT0_ALTSEL[3:0] = 0x0A, SLOT1_ALTSEL[3:0] = 1, SLOT2_ALTSEL[3:0] =
0x0B, SLOT3_ALTSEL[3:0] = 3.
Set CHOP_E[1:0] = 00.
Initialize any MPU interrupts, such as CE_BUSY, XFER_BUSY, or a power failure detection interrupt.
When different CE codes are used, a different set of environment parameters needs to be established.
The exact values for these parameters are stated in the Application Notes and other documentation
accompanying the CE codes.
CE codes should only be used with environment parameters specified in this document or in the
applicable CE code description. Changing environment parameters at random will lead to unpre-
dictable results.
Typically, there are thirteen 32768 Hz cycles per ADC multiplexer frame (see Figure 19 ). This means that
the product of the number of cycles per frame and the number of conversions per frame must be 12 (allowing
for one settling cycle).
During operation, CHOP_E[1:0] = 00 enables the automatic chopping mode and forces an alternate
multiplexer sequence at regular intervals. This enables accurate temperature measurement.
4.3.5
CE Calculations
Table 56: CE EQU[2:0] Equations and Element Input Mapping
I0SQSUM
EQU[2:0]
Watt & VAR Formula
(WSUM/VARSUM)
W0SUM/
VAR0SUM
Element Input Mapping
W1SUM/
VAR1SUM
I1SQSUM
0
1
2
VA IA (1 element, 2W 1 φ )
with tamper detection
VA*(IA-IB)/2
(1 element, 3W 1 φ )
VA*IA + VB*IB
(2 element, 4W 2 φ )
VA*IA
VA*(IA-IB)/2
VA*IA
VA*IB
(VA * IB)/2
VB*IB
IA
IA-IB
IA
IB
IB
IB
4.3.6
CE Status and Control
The CESTATUS register provides information about the status of voltage and input AC signal frequency,
which are useful for generating early power fail warnings, e.g. to initiate necessary data storage. It contains
sag warning flags for VA and VB as well as F 0 , the derived clock operating at the fundamental input
frequency. CESTATUS represents the status flags for the preceding CE code pass (CE busy interrupt).
Sag alarms are not remembered from one code pass to the next. The CE Status word is refreshed at
CE Address
0x80
Name
CESTATUS
Description
Since the CE_BUSY interrupt typically occurs at 2520.6 Hz, it is desirable to minimize the computation
required in the interrupt handler of the MPU. Rather than reading the CE status word at every CE_BUSY
interrupt and interpret the sag bits, it is recommended that the MPU activate the YPULSE output to generate
interrupts when a sag occurs (see the description of the CECONFIG register)
Rev 2
89
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相关代理商/技术参数 |
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|---|---|
| 71M6531F-MR/F/PE2 | 功能描述:计量片上系统 - SoC Residential Energy Meter IC 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 |
| 71M6531F-MR/F/PE3 | 功能描述:计量片上系统 - SoC Residential Energy Meter IC 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 |
| 71M6531F-MR/F/PE4 | 功能描述:计量片上系统 - SoC Residential Energy Meter IC 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 |
| 71M6531F-MR/F/PE5 | 功能描述:计量片上系统 - SoC Residential Energy Meter IC 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 |
| 71M6531-IMTR | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
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