参数资料
型号: 71M6521FE-DB
厂商: Maxim Integrated Products
文件页数: 59/107页
文件大小: 0K
描述: BOARD DEMO FOR 71M6521FE
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: 电源管理,电度表/功率表
嵌入式:
已用 IC / 零件: 71M6521
已供物品: 2 个板,线缆,CD,电源
71M6521DE/DH/FE Data Sheet
Data Flow
The data flow between CE and MPU is shown in Figure 26. In a typical application, the 32-bit compute engine (CE)
sequentially processes the samples from the voltage inputs on pins IA, VA, IB, and VB, performing calculations to
measure active power (Wh), reactive power (VARh), A 2 h, and V 2 h for four-quadrant metering. These measurements
are then accessed by the MPU, processed further and output using the peripheral devices available to the MPU.
Pulses
IRQ
Samples
CE
Pre-
Processor
Data
MPU
Post-
Processor
Processed
Metering
Data
I/O RAM (Configuration RAM)
Figure 26: MPU/CE Data Flow
CE/MPU Communication
Figure 27 shows the functional relationship between CE and MPU. The CE is controlled by the MPU via shared
registers in the I/O RAM and by registers in the CE DRAM. The CE outputs two interrupt signals to the MPU:
CE_BUSY and XFER_BUSY, which are connected to the MPU interrupt service inputs as external interrupts.
CE_BUSY indicates that the CE is actively processing data. This signal will occur once every multiplexer cycle.
XFER_BUSY indicates that the CE is updating data to the output region of the CE DRAM. This will occur whenever
the CE has finished generating a sum by completing an accumulation interval determined by SUM_CYCLES *
PRE_SAMPS samples. Interrupts to the MPU occur on the falling edges of the XFER_BUSY and CE_BUSY signals.
PULSES
VAR (DIO7)
W (DIO6)
ADC
Mux Ctrl.
SAMPLES
CE
APULSEW
APULSER
EXT_PULSE
SAG CONTROL
DATA
CE_BUSY
XFER_BUSY
INTERRUPTS
MPU
DISPLAY (me-
mory-mapped
LCD segments)
SERIAL
(UART0/1)
EEPROM
(I2C)
DIO
I/O RAM (CONFIGURATION RAM)
Figure 27: MPU/CE Communication
Rev 3
Page: 59 of 107
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相关代理商/技术参数
参数描述
71M6521FE-IGT 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IGT/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
71M6521FE-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
71M6521FE-IGTR 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IGTR/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