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| 型号： | 71M6531D-IMR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 16/121页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 128KB 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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Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
1.3.1
Meter Equations
The 71M6531D/F and 71M6532D/F provide hardware assistance to the CE in order to support various
meter equations. This assistance is controlled through I/O RAM location EQU[2:0] (equation assist). The
Compute Engine (CE) firmware for residential configurations implements the equations listed in Table 5 .
EQU[2:0] specifies the equation to be used based on the number of phases used for metering.
Table 5: Meter Equations
EQU[2:0]
Description
Watt and VAR Formula
Element Element Element
0 1 2
Mux
Sequence
ALT Mux
Sequence
0
1
2
1 element, 2 W,
1 φ with neutral
current sense
1 element, 3 W,
1 φ
2 element, 3 W,
3 φ Delta
VA ? IA
VA(IA-
IB)/2
VA ? IA
VA ? IB
N/A
VB ? IB
N/A
N/A
N/A
Sequence is
programmable
with
SLOTn_SEL[3:0]
Sequence is
programmable with
SLOTn_ALTSEL[3:0]
Not all CE codes support all equations.
1.3.2
Real-Time Monitor
The CE contains a Real-Time Monitor (RTM), which can be programmed to monitor four selectable XRAM
locations at full sample rate. The four monitored locations are serially output to the TMUXOUT pin via the
digital output multiplexer at the beginning of each CE code pass. The RTM can be enabled and disabled
with the RTM_E bit. The RTM output is clocked by CKTEST (pin SEG19/CKTEST), with the clock output
enabled by setting CKOUT_E = 1. Each RTM word is clocked out in 35 cycles and contains a leading flag
bit. See Figure 20 for the RTM output format. RTM is low when not in use.
1.3.3
Pulse Generators
The 71M6531D/F and 71M6532D/F provide four pulse generators, RPULSE, WPULSE, XPULSE and
YPULSE, as well as increased hardware support for the two original pulse generators (RPULSE and
WPULSE). The pulse generators can be used to output CE status indicators, SAG for example, to DIO pins.
The polarity of the pulses may be inverted with the PLS_INV bit. When this bit is set, the pulses are active
high, rather than the more usual active low. PLS_INV inverts all the pulse outputs.
XPULSE and YPULSE
Pulses generated by the CE may be exported to the XPULSE and YPULSE pulse outputs. Pins DIO8
and DIO9 are used for these pulses. Generally, the XPULSE and YPULSE outputs are updated once on
each pass of the CE code, resulting in a pulse frequency up to a maximum of 1260Hz (assuming a MUX
frame is 13 CK32 cycles).
The YPULSE pin can be used by the CE code to generate interrupts based on sag events. This method
is faster than checking the sag bits by the MPU at every CE_BUSY interrupt. See Section 4.3.6 CE Status
RPULSE and WPULSE
During each CE code pass, the hardware stores exported WPULSE AND RPULSE sign bits in an 8-bit
FIFO and outputs them at a specified interval. This permits the CE code to calculate the RPULSE and
WPULSE outputs at the beginning of its code pass and to rely on hardware to spread them over the MUX
frame. The FIFO is reset at the beginning of each MUX frame. The PLS_INTERVAL register controls the
delay to the first pulse update and the interval between subsequent updates. Its LSB is 4 CK_FIR cycles.
If zero, the FIFO is deactivated and the DFFs are updated immediately. Thus, N INTERVAL is
4 * PLS_INTERVAL .
16
Rev 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6531F | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6531F-DB | 功能描述:开发板和工具包 - 8051 71M6531F Demo Brd 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: |
| 71M6531F-IM/F | 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-IM/F3 | 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 |
| 71M6531F-IM/F4 | 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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