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參數(shù)資料
| 型號(hào)： | TPS2459RHBR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC32 |
| 封裝： | PLASTIC, QFP-32 |
| 文件頁數(shù)： | 29/44頁 |
| 文件大?。?/td> | 983K |
| 代理商： | TPS2459RHBR |
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PRODUCTPREVIEW
Register Write
A
C
K
0
ADDRESS
S
T
A
R
T
REGISTER NUMBER
DATA
S
T
O
P
A
C
K
A
C
K
Register Read
0
I2CTM ADDRESS
S
T
A
R
T
REGISTER NUMBER
I2CTM ADDRESS
S
T
A
R
T
1
DATA
A
C
K
S
T
O
P
A
C
K
A
C
K
A
C
K
www.ti.com ............................................................................................................................................................................................ SLUS917 – FEBRUARY 2009
Figure 28 shows the format of a register write. First, the master issues a start condition, followed by a seven-bit
I2C address. Next, the master writes a zero to signify that it wishes to conduct a write operation. Upon
receiving an acknowledge from the slave, the master writes the eight-bit register number across the bus.
Following a second acknowledge, the master writes the eight-bit data value for the register across the bus. Upon
receiving a third acknowledge, the master issues a stop condition. This action concludes the register write.
Figure 28. Register Write Format
Figure 29 shows the format of a register read. First, the master issues a start condition followed by a seven-bit
I2C address. Next, the master writes a zero to signify that it conducts a write operation. Upon receiving an
acknowledge from the slave, the master writes the eight-bit register number across the bus. Following a second
acknowledge, the master issues a repeat start condition. Then the master issues a seven-bit I2C address
followed by a one to signify that it conducts a read operation. Upon receiving a third acknowledge, the master
releases the bus to the TPS2459. The TPS2459 then writes the eight-bit data value from the register across the
bus. The master acknowledges receiving this byte and issues a stop condition. This action concludes the register
read.
Figure 29. Register Read Format
Copyright 2009, Texas Instruments Incorporated
35
Product Folder Link(s): TPS2459
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| TPS2459RHBT | 制造商:Texas Instruments 功能描述:Hot Swap Controllers TI 制造商:Texas Instruments 功能描述:IC, HOT SWAP & O-RING CTRL, 23V, QFN-32 |
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