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參數(shù)資料
| 型號： | DS2422 |
| 英文描述： | 1-Wire Temperature/Datalogger with 8kB Datalog Memory |
| 中文描述： | 1-Wire®溫度/數(shù)據(jù)記錄器，帶有8KB數(shù)據(jù)記錄存儲器 |
| 文件頁數(shù)： | 16/48頁 |
| 文件大小： | 444K |
| 代理商： | DS2422 |
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DS2422
16 of 48
Register Details
BIT DESCRIPTION
BIT(S)
DEFINITION
EDLA: Enable Data Low
Alarm
b0
This bit controls whether, during a mission, the Data Low Alarm Flag
DLF may be set, if a data value from the serial data interface is equal to
or lower than the value in the Data Low Alarm Threshold Register. If
EDLA is 1, data low alarms are enabled. If EDLA is 0, data low alarms
are not generated.
This bit controls whether, during a mission, the Data High Alarm Flag
DHF may be set, if a data value from the serial data interface is equal to
or higher than the value in the Data High Alarm Threshold Register. If
EDHA is 1, data high alarms are enabled. If EDHA is 0, data high
alarms are not generated.
EDHA: Enable Data High
Alarm
b1
REAL-TIME CLOCK CONTROL
To minimize the power consumption of a battery-operated datalogger, the RTC oscillator should be turned off when
device is not in use. The oscillator on/off bit is located in the RTC control register. This register also includes the
EHSS bit, which determines whether the sample rate is specified in seconds or minutes.
RTC Control Register Bitmap
ADDR
0212h
b7
0
b6
0
b5
0
b4
0
b3
0
b2
0
b1
b0
EHSS
EOSC
During a mission, there is only read access to this register. Bits 2-7 have no function. They always read 0 and
cannot be written to 1.
Register Details
BIT DESCRIPTION
BIT(S)
DEFINITION
EOSC: Enable Oscillator
b0
This bit controls the crystal oscillator of the RTC. When set to logic 1,
the oscillator will start operation. When written to logic 0, the oscillator
stops and the device is in a low-power data retention mode. This bit
must be 1 for normal operation. A temperature conversion or serial
data input must not be attempted while the RTC oscillator is stopped.
This will cause the device to enter into an undefined state, requiring a
power-on reset and restore of the trim settings to recover.
This bit controls the speed of the Sample Rate counter. When set to
logic 0, the sample rate is specified in minutes. When set to logic 1, the
sample rate is specified in seconds.
EHSS: Enable High Speed
Sample
b1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2422S | 1-Wire Temperature/Datalogger with 8kB Datalog Memory |
| DS2482-800 | Eight-Channel 1-Wire Master |
| DS2482-100 | Single-Channel 1-Wire Master |
| DS2482S-100 | Single-Channel 1-Wire Master |
| DS2482S-800 | Eight-Channel 1-Wire Master |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2422P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Serial SRAM |
| DS2422S | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS2422S+ | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS2422X | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| DS2423 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:4kbit 1-Wire RAM with Counter |
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