參數(shù)資料
型號(hào)： DS2482-800
英文描述： Eight-Channel 1-Wire Master
中文描述： 八通道1-Wire主控制器
文件頁(yè)數(shù)： 19/22頁(yè)
文件大?。?/td> 261K
代理商： DS2482-800
DS2482-800: Eight-Channel 1-Wire Master
19 of 22
1-Wire Reset, e.g., to begin or end 1-Wire communication
Case A: 1-Wire idle (1WB = 0), no busy polling to read the result
S
AD,0
A
1WRS
In the first cycle, the master sends the command; then the master waits (Idle) for the 1-Wire Reset to complete. In
the second cycle the DS2482 is accessed to read the result of the 1-Wire Reset from the Status Register.
Case B: 1-Wire idle (1WB = 0), busy polling until the 1-Wire Command is completed, then read the result
S
AD,0
A
1WRS
A
Sr
AD,1
A
P
(Idle)
S
AD,1
A
<byte>
A\
P
A
<byte>
A
<byte>
A\
P
Case C: 1-Wire busy (1WB = 1)
S
AD,0
The master should stop and restart as soon as the DS2482 does not acknowledge the command code.
1-Wire Write Byte, e.g., to send a command code to a 1-Wire IO channel
A
1WRS
A\
P
Case A: 1-Wire idle (1WB = 0), no busy polling
S
AD,0
A
33h is the valid 1-Wire ROM function command for Read ROM. The idle time is needed for the 1-Wire function to
complete. There is no data read back from the 1-Wire line with this command.
Case B: 1-Wire idle (1WB = 0), busy polling until the 1-Wire Command is completed.
S
AD,0
A
1WWB
A
33h
A
Sr
AD,1
When 1WB has changed from 1 to 0, the 1-Wire Write Byte command is completed.
Case C: 1-Wire busy (1WB = 1)
S
AD,0
A
1WWB
A\
P
The master should stop and restart as soon as the DS2482 does not acknowledge the command code.
1-Wire Read Byte, e. g., to read a byte from a 1-Wire IO channel
1WWB
A
33h
A
P
(Idle)
A
<byte>
A
<byte>
A\
P
Case A: 1-Wire idle (1WB = 0), no busy polling, set read pointer
after
idle time.
S
AD,0
A
1WRB
A
S
AD,0
A
SRP
A
The idle time is needed for the 1-Wire function to complete. Then set the read pointer to the read data register
(code E1h) and access the device again to read the data byte that was obtained from the 1-Wire IO channel.
Case B: 1-Wire idle (1WB = 0), no busy polling, set read pointer
before
idle time.
S
AD,0
A
1WRB
A
Sr
AD,0
(Idle)
S
The read pointer is set to the read data register (code E1h) while the 1-Wire Read Byte command is still in
progress. Then, after the 1-Wire function is completed, the device is accessed to read the data byte that was
obtained from the 1-Wire IO channel.
P
(Idle)
E1h
A
Sr
AD,1
A
<byte>
A\
P
A
SRP
A
E1h
A
P
AD,1
A
<byte>
A\
P
Repeat until the 1WB bit has changed to 0
Repeat until the 1WB
bit has changed to 0
相關(guān)PDF資料
PDF描述
DS2482-100 Single-Channel 1-Wire Master
DS2482S-100 Single-Channel 1-Wire Master
DS2482S-800 Eight-Channel 1-Wire Master
DS2502-E48 48-Bit Node Address Chip
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2482-800_12 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Channel 1-Wire Master
DS2482S-100 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
DS2482S-100/R 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Single-Channel 1-Wire Master
DS2482S-100/T 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Single-Channel 1-Wire Master
DS2482S-100/T&R 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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