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ADE75 数据表(PDF) 23 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) 23 Page - Analog Devices

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Preliminary Technical Data
ADE75xx/ADE71xx
Rev. PrE | Page 23 of 148
POWER MANAGEMENT
The ADE75XX/ADE71XX has an elaborate power management
circuitry that manages the regular power supply to Battery
switch over and power supply failures. The power management
functionalities can be accessed directly through the 8052 SFR –
see Table 11.
Table 11. Power Management SFRs
SFR
address
(hex)
R/W
Name
Description
0xC1
R/W
KYREG
Key Register
0xC5
R/W
POWCON
Power Management
Configuration
0xEC
R/W
IPSME
Power Management
Interrupt enable
0xF4
R/W
PERIPH
Power Management
Configuration
0xF5
R/W
BATPR
Battery Switchover
configuration
0xF8
R/W
IPSMF
Power Management
Interrupt Flag
0xFB
R/W
SCRATCH1
Scratch pad register
0xFC
R/W
SCRATCH2
Scratch pad register
0xFD
R/W
SCRATCH3
Scratch pad register
0xFE
R/W
SCRATCH4
Scratch pad register
0xFF
R/W
INTPR
Interrupt Wake-up
Configuration
POWER MANAGEMENT REGISTER DETAILS
Table 12. Interrupt pins configuration SFR (INTPR, 0xFF)
Bit
Location
Bit
Mnemonic
Default
Value
Description
7
RTCCAL
0
Control RTC calibration output
When set, the RTC calibration frequency selected by FSEL[1:0] is output on the
P0.2/CF1/RTCCAL pin.
Sets RTC calibration output frequency and calibration window
FSEL[1:0]
Calibration window, frequency
0
0
30.5 seconds, 1Hz
0
1
30.5 seconds, 512 Hz
1
0
0.244 seconds, 500Hz
6-5
FSEL[1:0]
1
1
0.244 seconds, 16.384 kHz
4
Reserved
Controls the function of INT1T
INT1PRG[2:0]
Function
x
0
0
GPIO
x
0
1
BCTRL
0
1
x
INT1 input disabled
3-1
INT1PRG[2:0]
000
1
1
x
INT1 input enabled



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