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參數(shù)資料
| 型號： | DS2406P+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SW ADDRESS DL W/1K MEM 6-TSOC |
| 產(chǎn)品培訓(xùn)模塊： | 1-Wire Communications Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 120 |
| 應(yīng)用： | 遙控，遙測 |
| 接口： | 1 線 |
| 電源電壓： | 2.8 V ~ 6 V |
| 封裝/外殼： | 6-LSOJ |
| 供應(yīng)商設(shè)備封裝： | 6-TSOC |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
| 產(chǎn)品目錄頁面： | 1429 (CN2011-ZH PDF) |
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DS2406
15 of 32
The TOG bit of Channel Control Byte 1 specifies if one is always reading or writing (TOG = 0) or if one
is going to change from reading to writing or vice versa after every data byte that has been sent to or
received from the DS2406 (TOG = 1). When accessing one channel, one byte is equivalent to eight reads
from or writes to the selected PIO pin. When accessing two channels, one byte is equivalent to four reads
or writes from/to each channel.
The initial mode (reading or writing) for accessing the PIO channels is specified in the IM bit. For read-
ing, IM has to be set to 1, for writing IM needs to be 0. If the TOG bit is set to 0, the device will always
read or write as specified by the IM bit. If TOG is 1, the device will use the setting of IM for the first byte
to be transmitted and will alternate between reading and writing after every byte. Table 1 illustrates the
effect of TOG and IM for one-channel as well as for two-channel operation.
THE EFFECT OF TOGGLE MODE AND INITIAL MODE Table 1
TOG
IM
CHANNELS
EFFECT
0
one channel
Write all bits to the selected channel
0
1
one channel
Read all bits from the selected channel
1
0
one channel
Write 8 bits, read 8 bits, write, read, etc. to/from
the selected channel
1
one channel
Read 8 bits, write 8 bits, read, write, etc. from/to
the selected channel
0
two channels
Repeat: four times (write A, write B)
0
1
two channels
Repeat: four times (read A, read B)
1
0
two channels
Four times: (write A, write B), four times: (read
A, read B), write, read, etc.
1
two channels
Four times: (read A, read B), four times: (write A,
write B), read, write, etc.
The ALR bit of Channel Control Byte 1 controls whether the activity latch of each channel gets reset.
Both activity latches are cleared simultaneously if the ALR bit is 1. They are not changed if the ALR bit
is 0. An activity latch is set with a negative or positive edge that occurs at its associated PIO channel.
Channel Control Byte 1 also controls the internal CRC generator to safeguard data transmission between
the bus master and the DS2406 for channel access. It does not affect reading from or writing to the
memory sections of the DS2406. The CRC control bits (bit 0 and bit 1) can be set to create and protect
data packets that have the size of 8 bytes or 32 bytes. If desired, the device can safeguard even single
bytes by a 16-bit CRC. This setting, however, limits the average PIO sampling rate to about one third of
its maximum possible value. The codes for the CRC control are shown in the table below.
CRC1
CRC0
Description
0
CRC disabled (no CRC at all)
0
1
CRC after every byte
1
0
CRC after 8 bytes
1
CRC after 32 bytes
The CRC provides a high level of safeguarding data. A detailed description of CRCs is found in
Application Note 27. If the CRC is disabled, the CRC-related sections in the flow chart are skipped.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2406P/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Addressable Switch Plus 1kbit Memory |
| DS2406P/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Addressable Switch Plus 1kbit Memory |
| DS2406P/T&R | 制造商:Maxim Integrated Products 功能描述:IC SW DL ADDRESS W/1K MEM 6-TSOC |
| DS2406P/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 |
| DS2406P/TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
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