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參數(shù)資料
| 型號： | DS2490S |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Bus Controller |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDSO24 |
| 封裝： | 0.300 INCH, SO-24 |
| 文件頁數(shù)： | 14/51頁 |
| 文件大?。?/td> | 444K |
| 代理商： | DS2490S |
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DS2490
21 of 50
Command parameters:
None
EP2 data:
None
EP3 data:
None
Result Register:
Code
Condition
VPP
ICP = 0, NTF = 0 or 1: no +12V was sensed.
0x00
ICP = 0, NTF = 1: no error detected
None
ICP = 0, NTF = 0: no error detected
None
ICP = 1
1-WIRE RESET—This command is used to generate a reset pulse on the 1-Wire bus and to optionally
change the 1-Wire speed. The new speed will take effect only if the embedded command bit SE is set to
1. When the 1-WIRE RESET is sent after an Overdrive Skip ROM command, SE must be 1 and the new
speed must be 0x02. See MODE CONTROL section for additional communication speed information. To
switch back to regular speed, set SE = 1 and the new speed parameter to 0x00 (regular) or 0x01 (flexible).
Command parameters:
1 byte specifying new speed after the reset.
EP2 data:
None
EP3 data:
None
Result Register:
Code
Condition
SH, NRS, APP
ICP = 0, NTF = 0 or 1: An abnormal condition or
an Alarming Presence Pulse was detected
0x00
ICP = 0, NTF = 1: no error detected
None
ICP = 0, NTF = 0: no error detected
None
ICP = 1
BIT I/O - This command generates a single time slot on the 1-Wire bus and reads back the response.
Data bit d3 (D) of command byte 1 specifies the value to be written to the 1-Wire bus. This time slot may
optionally be followed by a strong pullup using embedded command bits SPU and CIB. With CIB = 1, a
requested strong pullup will only occur if the read-back revealed a 0. Data is returned to the host only if
the embedded command bit ICP = 0. If ICP = 0, the bit read from the 1-Wire device is stored in the
EP3 FIFO and is read by the host using an EP3 bulk transaction.
Command parameters:
None.
EP2 data:
None, this command gets its input data as a command parameter.
EP3 data:
Length
Description
If ICP = 0: 1 byte
Bit read back from the 1-Wire device.
If ICP = 1: None
No data is returned.
Result Register:
If ICP = 1: no result data is generated.
If ICP = 0 and NTF = 1: a result value of 0x00 will be generated.
If IPC = 0 and NTF = 0: no result data is generated since there are no
error codes associated with this command.
BIT I/O Read Back Byte Table 15
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
0
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2502P | 128 X 8 OTPROM, PDSO6 |
| DS2502S | 128 X 8 OTPROM, PDSO8 |
| DS2502 | 128 X 8 OTPROM, PBCY3 |
| DS2505/T&R | 16K X 1 OTPROM, PBCY3 |
| DS2505P | 16K X 1 OTPROM, PDSO6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2490S+ | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Rail/Tube 制造商:Maxim Integrated Products 功能描述:USB 1-W BRIDGE CHIP 24-SO LF 制造商:Maxim Integrated Products 功能描述:Bulk |
| DS2490S+T&R | 制造商:Maxim Integrated Products 功能描述:USB TO 1-WIRE BRIDGE 24SOIC W - Tape and Reel |
| DS2490S+TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:USB to 1-Wire Bridge Chip |
| DS2490X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:USB to 1-Wire Bridge Chip(468.41 k) |
| DS2490X/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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