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ADE75 数据表(PDF) 69 Page - Analog Devices

部件名 ADE75
功能描述  Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver
PDF  148 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADE75 数据表(HTML) 69 Page - Analog Devices

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Preliminary Technical Data
ADE75xx/ADE71xx
Rev. PrE | Page 69 of 148
1
0
2 minutes
1
1
1 minute
Table 47. Temperature and Voltage ADC Delta SFR (DIFFPROG, 0xF3)
Bit
Location
Bit
Mnemonic
Default
Value
Description
7-6
Reserved
0
Reserved
Difference threshold between last temperature measurement interrupting 8052
and new temperature measurement that should interrupt 8052
TEMP_DIFF[2:0]
0
0
0
No Interrupt
0
0
1
1 LSB (
≈ 0.8°C)
0
1
0
2 LSB (
≈ 1.6°C)
0
1
1
3 LSB (
≈ 2.4°C)
1
0
0
4 LSB (
≈ 3.2°C)
1
0
1
5 LSB (
≈ 4.0°C)
1
1
0
6 LSB (
≈ 4.8°C)
5-3
TEMP_DIFF[2:0]
0
1
1
1
Every Temperature measurement
Difference threshold between last external voltage measurement interrupting
8052 and new external voltage measurement that should interrupt 8052
VDCIN_DIFF[2:0]
0
0
0
No Interrupt
0
0
1
1 LSB (≈ 120 mV)
0
1
0
2 LSB (≈ 240 mV)
0
1
1
3 LSB (≈ 360 mV)
1
0
0
4 LSB (≈ 480 mV)
1
0
1
5 LSB (≈ 600 mV)
1
1
0
6 LSB (≈ 720 mV)
2-0
VDCIN_DIFF[2:0]
0
1
1
1
Every VDCIN measurement
48. Start ADC Measurement SFR (ADCGO, 0xD8)
Bit
Location
Bit
Addr.
Bit
Name
Default
Value
Description
7
0xDF
PLLACK
0
Set this bit to clear the PLL fault bit, PLL_FLT in the PERIPH register. A PLL
fault is generated if a reset was caused because the PLL lost lock.
6-3
0xDE –
0xDB
Reserved
0
Reserved
2
0xDA
VADC
0
Set this bit to initiate an externalvoltage measurement. This bit will be
cleared when the measurement request is received by the ADC.
1
0xD9
TADC
0
Set this bit to initiate a temperature measurement. This bit will be cleared
when the measurement request is received by the ADC.
0
0xD8
BTADC
0
Set this bit to initiate a battery measurement. This bit will be cleared when
the measurement request is received by the ADC.
Table 49. Battery detection threshold SFR (BATVTH, 0xFA)
Bit
Bit
Default
Value
Description



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