参数资料
型号: ADE5166ASTZF62-RL
厂商: Analog Devices Inc
文件页数: 77/156页
文件大小: 0K
描述: IC METER/8052/RTC/LCD DRV 64LQFP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 1,500
输入阻抗: *
测量误差: *
电压 - 高输入/输出: *
电压 - 低输入/输出: *
电流 - 电源: *
电源电压: *
测量仪表类型: *
工作温度: *
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 带卷 (TR)
Data Sheet
ADE5166/ADE5169/ADE5566/ADE5569
TEMPERATURE MEASUREMENT
To provide a digital temperature measurement, each ADE5166/
ADE5169/ADE5566/ADE5569 includes a dedicated ADC. The
8-bit temperature ADC value SFR (TEMPADC, Address 0xD7)
holds the results of the temperature conversion. The resolution of
the temperature measurement is 0.83°C/LSB. There are two ways
to initiate a temperature conversion: a single temperature measure-
ment or background temperature measurements.
?
?
In PSM1 operating mode, the 8052 is active, and the part
is battery powered. Single temperature measurements
can be initiated by setting the TEMP_ADC_GO bit in the
start ADC measurement SFR (ADCGO, Address 0xD8[1]).
Background temperature measurements are not available.
In PSM2 operating mode, the 8052 is not active. Temperature
conversions are available through the background measure-
ment mode only.
Single Temperature Measurement
Set the TEMP_ADC_GO bit (Bit 1) in the start ADC measure-
ment SFR (ADCGO, Address 0xD8) to obtain a temperature
measurement (see Table 52). An interrupt is generated when the
conversion is complete and when the temperature measurement
is available in the temperature ADC value SFR (TEMPADC,
Address 0xD7).
Background Temperature Measurements
Background temperature measurements are disabled by default.
To configure the background temperature measurement mode,
set a temperature measurement interval in the peripheral ADC
strobe period SFR (STRBPER, Address 0xF9). Temperature mea-
surements are then performed periodically in the background (see
Table 50).
When a temperature conversion completes, the new temperature
ADC value is compared to the last temperature ADC value that
created an interrupt. If the absolute difference between the two
values is greater than the setting of the TEMP_DIFF bits in the
temperature and supply delta SFR (DIFFPROG, Address 0xF3[5:3]),
a TEMPADC interrupt is generated (see Table 51). This allows
temperature measurements to take place completely in the back-
ground, requiring MCU activity only if the temperature changes
more than a configurable delta.
To set up background temperature measurement
The temperature ADC value SFR (TEMPADC, Address 0xD7)
is updated with a new value only when a temperature ADC
interrupt occurs.
Temperature ADC Interrupt
The temperature ADC can generate an ADC interrupt when at
least one of the following conditions occurs:
? The difference between the new temperature ADC value and
the last temperature ADC value generating an ADC interrupt
is larger than the value set in the TEMP_DIFF bits.
? The temperature ADC conversion, initiated by setting start
ADC measurement SFR (ADCGO, Address 0xD8), finishes.
When the ADC interrupt occurs, a new value is available in the
temperature ADC value SFR (TEMPADC, Address 0xD7). Note
that there is no flag associated with this interrupt.
BATTERY MEASUREMENT
To provide a digital battery measurement, each ADE5166/
ADE5169/ADE5566/ADE5569 includes a dedicated ADC. The
battery measurement is available in the 8-bit battery ADC value
SFR (BATADC, Address 0xDF). The battery measurement has a
resolution of 14.6 mV/LSB. A battery conversion can be initiated
by two methods: a single battery measurement or background
battery measurements.
Single Battery Measurement
1.
2.
Initiate a single temperature measurement by setting the
TEMP_ADC_GO bit in the start ADC measurement SFR
(ADCGO, Address 0xD8[1]).
Upon completion of this measurement, configure the
TEMP_DIFF bits in the temperature and supppy delta SFR
To obtain a battery measurement, set the BATT_ADC_GO bit in
the start ADC measurement SFR (ADCGO, Address 0xD8[0]).
An interrupt is generated when the conversion is done and when
the battery measurement is available in the battery ADC value SFR
(BATADC, Address 0xDF).
(DIFFPROG, Address 0xF3[5:3]) to establish the change in
temperature that triggers an interrupt.
3. Set up the interval for background temperature measurements
by configuring the TEMP_PERIOD bits in the peripheral
ADC strobe period SFR (STRBPER, Address 0xF9[1:0]).
Temperature ADC in PSM0, PSM1, and PSM2 Modes
Depending on the operating mode of the ADE5166/ADE5169/
ADE5566/ADE5569, a temperature conversion is initiated only
by certain actions.
Background Battery Measurements
To configure background measurements for the battery, establish a
measurement interval in the peripheral ADC strobe period SFR
(STRBPER, Address 0xF9). Battery measurements are then
performed periodically in the background (see Table 50).
When a battery conversion completes, the battery ADC value is
compared to the low battery threshold, established in the battery
detection threshold SFR (BATVTH, Address 0xFA). If the battery
ADC value is below this threshold, a low battery flag is set. This
?
In PSM0 operating mode, the 8052 is active. Temperature
measurements are available in the background measurement
mode and by initiating a single measurement.
low battery flag is the FBAT bit (Bit 2) in the power management
interrupt flag SFR (IPSMF, Address 0xF8), used for power supply
management. This low battery flag can be enabled to generate
the PSM interrupt by setting the EBAT bit (Bit 2) in the power
management interrupt enable SFR (IPSME, Address 0xEC).
Rev. D | Page 77 of 156
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