參數(shù)資料
型號(hào): TPS62651YFFT
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.7 A SWITCHING REGULATOR, 6600 kHz SWITCHING FREQ-MAX, BGA9
封裝: DSBGA-9
文件頁(yè)數(shù): 18/38頁(yè)
文件大?。?/td> 820K
代理商: TPS62651YFFT
Start
Condition
DATA
Stop
Condition
CLK
S
P
Change of Data Allowed
Data Line
Stable;
Data Valid
DATA
CLK
Not Acknowledge
Acknowledge
1
2
8
9
Clock Pulse for
Acknowledgement
S
START
Condition
Data Output
by Transmitter
Data Output
by Receiver
SCL From
Master
SLVS808A
– AUGUST 2009 – REVISED FEBRUARY 2011
H/S-Mode Protocol
When the bus is idle, both SDA and SCL lines are pulled high by the pull-up devices.
The master generates a start condition followed by a valid serial byte containing HS master code 00001XXX.
This transmission is made in F/S-mode at no more than 400 Kbps. No device is allowed to acknowledge the HS
master code, but all devices must recognize it and switch their internal setting to support 3.4-Mbps operation.
The master then generates a repeated start condition (a repeated start condition has the same timing as the start
condition). After this repeated start condition, the protocol is the same as F/S-mode, except that transmission
speeds up to 3.4 Mbps are allowed. A stop condition ends the HS-mode and switches all the internal settings of
the slave devices to support the F/S-mode. Instead of using a stop condition, repeated start conditions are used
to secure the bus in HS-mode.
Attempting to read data from register addresses not listed in this section results in FFh being read out.
Figure 50. START and STOP Conditions
Figure 51. Bit Transfer on the Serial Interface
Figure 52. Acknowledge on the I2C Bus
2009–2011, Texas Instruments Incorporated
25
Product Folder Link(s): TPS62650 TPS62651
相關(guān)PDF資料
PDF描述
TPS62651YFF 1.7 A SWITCHING REGULATOR, 6600 kHz SWITCHING FREQ-MAX, BGA9
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TPS62650YFFR 1.7 A SWITCHING REGULATOR, 6600 kHz SWITCHING FREQ-MAX, BGA9
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