參數(shù)資料
型號(hào)： LM81CIMT-3
英文描述： DATA ACQ SYSTEM|6-CHANNEL|8-BIT|TSSOP|24PIN|PLASTIC
中文描述： 數(shù)據(jù)ACQ木材系統(tǒng)| 6聲道| 8位| TSSOP封裝| 24針|塑料
文件頁(yè)數(shù)： 13/33頁(yè)
文件大?。?/td> 388K
代理商： LM81CIMT-3
Functional Description
(Continued)
2.2 Serial Bus Interface
The Serial Bus control lines consist of the SMBData (serial
data), SMBCLK (serial clock) and A0-A1 (address) pins. The
LM81 can operate only as a slave. The SMBCLK line only
controls the serial interface, all other clock functions within
LM81 such as the ADC and fan counters are done with a
separate asynchronous internal clock.
When using the Serial Bus Interface a write will always
consist of the LM81 Serial Bus Interface Address byte, fol-
lowed by the Internal Address Register byte, then the data
byte. There are two cases for a read:
1.
If the InternalAddress Register is known to already be at
the desired Address, simply read the LM81 with the
Serial Bus Interface Address byte, followed by the data
byte read from the LM81.
2.
If the Internal Address Register value is unknown, or if it
is not the desired value, write to the LM81 with the Serial
Bus Interface Address byte, followed by the Internal
Address Register byte. Then restart the Serial Commu-
nication with a Read consisting of the Serial Bus Inter-
face Address byte, followed by the data byte read from
the LM81.
The default Serial Bus address of the LM81 is set to 010
11(A1)(A0).All bits, except forA0 andA1, can be changed by
writing to the Serial Bus address register. A0 and A1 will
always reflect the state of the A0 and A1 input pins.
All of these communications are depicted in the Serial Bus
Interface Timing Diagrams as shown in Figure 5
Serial Bus Timeout can be initiated by holding the SMBCLK
and/or SMBData lines low for greater than t
(35 ms
max). Serial Bus Timeout resets the serial bus interface
circuitry to the idle state and readies the LM81 for a new
serial bus communication.
DS100072-8
(a) Serial Bus Write to the Internal Address Register followed by the Data Byte
DS100072-9
(b) Serial Bus Write to the Internal Address Register Only
DS100072-10
(c) Serial Bus Read from a Register with the Internal Address Register Preset to Desired Location
FIGURE 5. Serial Bus Timing
L
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相關(guān)PDF資料
PDF描述
LM81BIMT-3 DATA ACQ SYSTEM|6-CHANNEL|8-BIT|TSSOP|24PIN|PLASTIC
LM81BIMTX-3 DATA ACQ SYSTEM|6-CHANNEL|8-BIT|TSSOP|24PIN|PLASTIC
LM81CIMTX-3 Single-Ended Data Acquisition System
LM8362_SERIES
LM8363_SERIES
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM81CIMT-3/NOPB 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
LM81CIMT-31 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Serial Interface ACPI-Compatible Microprocessor System
LM81CIMTX3 制造商:Texas Instruments 功能描述:
LM81CIMTX-3 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
LM81CIMTX-3/NOPB 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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