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APW8855 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 34 Page - Anpec Electronics Coropration

๋ถ€ํ’ˆ๋ช… APW8855
์ƒ์„ธ๋‚ด์šฉ  High Current, High Frequency 7 Outputs Voltage Regulator and Power Management IC for High Performance Tablet and Ultra Notebook Applications
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์ œ์กฐ์‚ฌ  ANPEC [Anpec Electronics Coropration]
ํ™ˆํŽ˜์ด์ง€  http://www.anpec.com.tw
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APW8855 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 34 Page - Anpec Electronics Coropration

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Copyright
ยฉ ANPEC Electronics Corp.
Rev. A.1 - Dec., 2015
APW8855
www.anpec.com.tw
34
15.2 I2C Function Description(Cont.)
Master to Slave
Slave to Master
S
7bit Slave
Address
A
8bit
Address
A
R/W
Reg .Address
โ€˜0โ€™
7'h6E
Sr
7bit Slave
Address
7'h6E
Reg. First
Byte Data
A
A
P
Reg. Last
Byte Data
A
8bit Data
8bit Data
R/W
โ€˜1โ€™
A= Acknowledge ( SDA LOW )
A=
Not Acknowledge
( SDA HIGH )
P = STOP Condition
S= START Condition
Sr=
Repeated START Condition
Figure 4. I2C Fast Speed / Fast Speed Plus Multiple Byte Read
Master to Slave
Slave to Master
Sr
7bit Slave
Address
A
8bit
Address
A
R/W
Reg. Address
โ€˜0โ€™
7'h6E
8bit
Data
P
A
S 8bit Master Code
โ€œ0000 1XXXโ€
Fast Speed
(400kHz)
High Speed
(3.4MHz)
A= Acknowledge ( SDA LOW )
A=
Not Acknowledge
( SDA HIGH )
P= STOP Condition
S= START Condition
Sr=
Repeated START Condition
Reg. Data
A
Figure 5. I2C High Speed Single Byte Write
Master to Slave
Slave to Master
A= Acknowledge ( SDA LOW)
A= Not Acknowledge ( SDA HIGH)
S= START Condition
P= STOP Condition
Sr=Repeated Start Condition
S 8bit Master Code
โ€œ0000 1XXXโ€
7'h 6E
Fast Speed
(400kHz)
High Speed
(3.4MHz)
A Sr 7bit Slave
Address
A
8bit
Address A
R/W
.
Reg.
Address
โ€˜0โ€™
Reg. First
Byte Data
A
P
Reg. Last
Byte Data
A
8bit
Data
8bit
Data
Figure 6. I2C High Speed Multiple Byte Write


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