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參數資料
| 型號： | TPS23841_07 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | HIGH-POWER, WIDE VOLTAGE RANGE, QUAD-PORT ETHERNET POWER SOURCING EQUIPMENT MANAGER |
| 中文描述： | 大功率，寬電壓范圍，四端口以太網供電設備管理器 |
| 文件頁數： | 31/52頁 |
| 文件大小： | 1011K |
| 代理商： | TPS23841_07 |
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Data Read Cycles
TPS23841
SLUS745–NOVEMBER 2006
For a data read sequence, after the register acknowledge bit, the master device generates a stop condition. This
is followed by a second start condition, and re-transmitting the device address as described in chip address
above. For this cycle, however, the R/W bit is set to a 1 to signal the read operation. The TPS23841 again
responds with an acknowledge pulse. The address acknowledge is then followed by sequentially presenting
each of the eight data bits on the SDA_O line (MSB first), to be read by the host device on the rising edges of
SCL. After eight bits are transmitted, the host acknowledges by pulling the SDA_I line high for one clock pulse.
The completed data transfer is terminated with the host generating a stop condition.
Table 2. Register/Port Addressing Map
BIT
FUNCTION
STATE
PRESET
STATE
0
D7
D6
D5
D4
Unused
Register select MSB
Register select Bit 2
Register select Bit 1
0
0000 = Common Read - Port fault status, chip ID and rev.
0001 = Common Control Write - Software reset, ports disable and AC Disc.
0010 = Port Control Write 1 - Function calls; misc. fault disables
0011 = Port Control Write 2 - Port enable; A/D control
0100 = Port Status Read 1 - Fault status; device Class info.
0101 = Port Status Read 2 - Function and other status
0110 = Discovery Current - Lower Bits - A/D resistance results
0111 = Discovery Current - Upper Bits - A/D resistance results
1000 = Voltage-Lower Bits - A/D voltage reslts
1001 = Voltage - Upper Bits - A/D voltage results
1010 = Current - Lower Bits - A/D current results
1011 = Current - Upper Bits - A/D current results
1100 = Temperature - Lower Bits - A/D temperature results
1101 = Temperature - Upper Bits - A/D temperature results
1110 = unused
1111 = Common Write - Test mode selections - timer disables, discovery control, etc.
0
00 = port 1
01 = port 2
10 = port 3
11 = port 4
0000
D3
Register select LSB
D2
D1
D0
Unused
Port address MSB
Port address LSB
0
00
31
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS23841PAP | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PAPG4 | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PAPR | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PAPRG4 | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23841PJD | 功能描述:熱插拔功率分布 HP Wide Volt Range Quad Part Ethernet RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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