參數(shù)資料
型號(hào): LM95010CIMM
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 溫度/濕度傳感器
英文描述: Digital Temperature Sensor with SensorPath⑩ Bus in MSOP8 Package
中文描述: DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 2Cel, SQUARE, SURFACE MOUNT
封裝: MO-187, MSOP-8
文件頁數(shù): 10/19頁
文件大?。?/td> 275K
代理商: LM95010CIMM
1.0 Functional Description
(Continued)
1.3.2 Read Transaction
During a read transaction, the master reads data from a
register at a specified address within a slave. A read trans-
action begins with a Start Bit and ends with an ACK bit, as
shown in
Figure 7
.
Device Number
This is the address of the LM95010
device accessed. Address "000" is a broadcast address
and can be responded to by all the slave devices. The
LM95010 ignores the broadcast address during a read
transaction.
Internal Address
The address of a register within the
LM95010 that is read.
Read/Write (R/W)
A "1" indicates a read transaction.
Data Bits
During a read transaction the data bits are
driven by the LM95010. Data is transferred serially with
the most significant bit first. This allows throughput opti-
mization based on the information that needs to be read.
The LM95010 supports 8-bit or 16-bit data fields, as
described in Section 2.0 "Register Set".
Even Parity (EP)
This bit is based on all preceding bits
(device number, internal address, read/write and data
bits) and the parity bit itself. The parity -number of 1’s - of
all the preceding bits and the parity bit must be even - i.e.,
the result must be 0. During a read transaction, the EP bit
is sent by the LM95010 to the master to allow the master
to check the received data before using it.
Acknowledge (ACK)
During a read transaction theACK
bit is sent by the master indicating that the EP bit was
received and was found to be correct, when compared to
the data preceding it, and that no conflict was detected
on the bus (excluding Attention Request - see Section
1.3.5 "Attention Request Transaction"). A read transfer is
considered "complete" only when theACK bit is received.
A transaction that was not positively acknowledged is not
considered "complete" by the LM95010 and following are
performed:
— The BER bit in the LM95010 Device Status register is
set
— The LM95010 generates an Attention Request before,
or together with the Start Bit of the next transaction
A transaction that was not positively acknowledged is
also not considered "complete" by the master (i.e. inter-
nal operations related to the transaction are not per-
formed). The transaction may be repeated by the master,
after detecting the source of the Attention Request (the
LM95010 that has a set BER bit in the Device Status
register). Note that the SensorPath protocol neither
forces, nor automates re-execution of the transaction by
the master.
The values of the ACK bit are:
— 1: Data was received correctly
— 0: An error was detected (no-acknowledge).
1.3.3 Write Transaction
In a write transaction, the master writes data to a register at
a specified address in the LM95010. A write transaction
begins with a Start Bit and ends with an ACK Data Bit, as
show in
Figure 8
.
Device Number
This is the address of the slave device
accessed. Address "000" is a broadcast address and is
responded to by all the slave devices. The LM95010
responds to broadcast messages to the Device Control
Register.
Internal Address
This is the register address in the
LM95010 that will be written.
Read/Write (R/W)
A "0" data bit directs a write transac-
tion.
20082008
FIGURE 6. Bus Reset Transaction
20082009
FIGURE 7. Read Transaction, master reads data from LM95010
L
www.national.com
10
相關(guān)PDF資料
PDF描述
LM95071 SPI/MICROWIRE⑩ 13-Bit Plus Sign Temperature Sensor
LM95071CIMFX SPI/MICROWIRE⑩ 13-Bit Plus Sign Temperature Sensor
LM96000 Hardware Monitor with Integrated Fan Control
LM96000CIMT Hardware Monitor with Integrated Fan Control
LM96000CIMTX Hardware Monitor with Integrated Fan Control
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM95010CIMM/NOPB 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
LM95010CIMMX 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
LM95010CIMMX/NOPB 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
LM95010EVAL 功能描述:溫度傳感器開發(fā)工具 LM95010 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評(píng)估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流:
LM95071 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SPI/MICROWIRE⑩ 13-Bit Plus Sign Temperature Sensor