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參數(shù)資料
| 型號： | ADT7411ARQZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Circular Connector; No. of Contacts:55; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:17-35 |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 5Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | MO-137-AB, LEAD FREE, QSOP-16 |
| 文件頁數(shù)： | 33/36頁 |
| 文件大?。?/td> | 456K |
| 代理商： | ADT7411ARQZ-REEL7 |
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ADT7411
Rev. A | Page 33 of 36
0
MASTER
RECEIVES
SMBALERT
START
ALERT RESPONSE
ADDRESS
RD ACK DEVICE ADDRESS
MASTER SENDS
ARA AND READ
COMMAND
DEVICE SENDS
ITS ADDRESS
NO
ACK
STOP
Figure 42. INT/INT Responds to SMBALERT ARA
1.
SMBALERT is pulled low.
2.
Master initiates a read operation and sends the alert
response address (ARA = 0001 100). This is a general call
address that must not be used as a specific device address.
3.
The device whose INT/INT output is low responds to the
alert response address and the master reads its device
address. As the device address is seven bits long, an LSB of
1 is added. The address of the device is now known and it
can be interrogated in the usual way.
4.
If more than one device’s INT/INT output is low, the one
with the lowest device address will have priority, in
accordance with normal SMBus specifications.
5.
Once the ADT7411 has responded to the alert response
address, it will reset its INT/INT output, provided that the
condition that caused the out-of-limit event no longer
exists and the status register associated with the out-of-
limit event is read. If the SMBALERT line remains low, the
master will send the ARA again. It will continue to do this
until all devices whose SMBALERT outputs were low have
responded.
0
MASTER
START
ALEADDRESS
RD ACK
DEVICE
MASTER SENDS
DEVICE SENDS
DEVICE ACK
ACK
PEC
NO
STOP
MASTER
MASTER
DEVICE SENDS
Figure 43. INT/INT Responds to SMBALERT ARA with
Packet Error Checking (PEC)
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