参数资料
型号: ADE7754ARZRL
厂商: Analog Devices Inc
文件页数: 40/44页
文件大小: 0K
描述: IC ENERGY METERING 3PHASE 24SOIC
标准包装: 1
输入阻抗: 370 千欧
测量误差: 0.1%
电压 - 高输入/输出: 2.4V
电压 - 低输入/输出: 0.8V
电流 - 电源: 7mA
电源电压: 4.75 V ~ 5.25 V
测量仪表类型: 3 相
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-SOIC(0.295",7.50mm 宽)
供应商设备封装: 24-SOIC W
包装: 剪切带 (CT)
配用: EVAL-ADE7754EBZ-ND - BOARD EVALAUTION FOR ADE7754
其它名称: ADE7754ARZRLCT
ADE7754
Interrupt Status Register (10h)/Reset Interrupt Status Register (11h)
The interrupt status register is used to determine the source of an interrupt event. When an interrupt event occurs in the ADE7754,
the corresponding flag in the interrupt status register is set logic high. The IRQ pin will go active low if the corresponding bit in the
interrupt enable register is set logic high. When the MCU services the interrupt, it must first carry out a read from the interrupt sta-
tus register to determine the source of the interrupt. All the interrupts in the interrupt status register stay at their logic high state after
an event occurs. The state of the interrupt bit in the interrupt status register is reset to its default value once the reset interrupt status
register is read.
Table XVII. STATUS Register
Bit
Location
0
Interrupt
Flag
AEHF
Default
Value
0
Event
Description
Indicates that an interrupt was caused by the 0 to 1 transition of the MSB of the AENERGY
register (i.e., the AENERGY register is half full).
1
2
3
4
5
6
7
8
9
Ah
SAGA
SAGB
SAGC
ZXTOA
ZXTOB
ZXTOC
ZXA
ZXB
ZXC
LENERGY
0
0
0
0
0
0
0
0
0
0
Indicates that an interrupt was caused by a SAG on the line voltage of the Phase A.
Indicates that an interrupt was caused by a SAG on the line voltage of the Phase B.
Indicates that an interrupt was caused by a SAG on the line voltage of the Phase C.
Indicates that an interrupt was caused by a missing zero crossing on the line voltage of the Phase A.
Indicates that an interrupt was caused by a missing zero crossing on the line voltage of the Phase B.
Indicates that an interrupt was caused by a missing zero crossing on the line voltage of the Phase C.
Indicates a detection of rising zero crossing in the voltage channel of the Phase A.
Indicates a detection of rising zero crossing in the voltage channel of the Phase B.
Indicates a detection of rising zero crossing in the voltage channel of the Phase C.
In line energy accumulation, it indicates the end of an integration over an integer number of
half line cycles (LINCYC). See the Energy Calculation section.
Bh
Ch
RESET
PKV
0
0
Indicates that the ADE7754 has been reset.
Indicates that an interrupt was caused when the selected voltage input is above the value in the
PKVLV register.
Dh
PKI
0
Indicates that an interrupt was caused when the selected current input is above the value in the
PKILV register.
Eh
Fh
WFSM
VAEHF
0
0
Indicates that new data is present in the waveform register.
Indicates that an interrupt was caused by the 0 to 1 transition of the MSB of the VAENERGY
register (i.e., the VAENERGY register is half full).
INTERRUPT STATUS REGISTER *
F
E
D
C
B
A
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ADDR: 10h
VAEHF
(APPARENT ENERGY REGISTER HALF FULL)
WFSM
(NEW WAVEFORM SAMPLE READY)
PKI
(CURRENT CHANNEL PEAK DETECTION)
PKV
(VOLTAGE CHANNEL PEAK DETECTION)
LENERGY
(END OF THE LAENERGY AND LVAENERGY ACCUMULATION)
RESET
* REGISTER CONTENTS SHOW POWER-ON DEFAULTS
–40 –
AEHF
(ACTIVE ENERGY REGISTER HALF FULL)
SAG
(SAG EVENT DETECT)
ZX
(ZERO-CROSSING TIMEOUT DETECTION)
ZX
(ZERO-CROSSING DETECTION)
REV. 0
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