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EMC2113 Datasheet(PDF) 19 Page - Microchip Technology

No. de pieza EMC2113
Descripción Electrónicos  RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
PDF  88 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

EMC2113 Datasheet(HTML) 19 Page - Microchip Technology

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RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
Datasheet
 2013 Microchip Technology Inc.
DS20005251A-page 19
5.2.1
Write Byte
The Write Byte is used to write one byte of data to the registers as shown below Table 5.3.
5.2.2
Read Byte
The Read Byte protocol is used to read one byte of data from the registers as shown in Table 5.4.
5.2.3
Send Byte
The Send Byte protocol is used to set the internal address register pointer to the correct address
location. No data is transferred during the Send Byte protocol as shown in Table 5.5.
Table 5.2 Protocol Format
DATA SENT
TO DEVICE
DATA SENT TO
THE HOST
# of bits sent
# of bits sent
Table 5.3 Write Byte Protocol
START
SLAVE
ADDRESS
WR
ACK
REGISTER
ADDRESS
ACK
REGISTER
DATA
ACK
STOP
1 -> 0
YYYY_YYY
0
0
0 -> 1
0
XXh
0
0 -> 1
Table 5.4 Read Byte Protocol
START
SLAVE
ADDRESS
WR
ACK
REGISTER
ADDRESS
ACK
START
SLAVE
ADDRESS
RD
ACK
REGISTER
DATA
NACK
STOP
1 -> 0
YYYY_YYY
0
0
XXh
0
1 -> 0
YYYY_YYY
1
0
XXh
1
0 -> 1
Table 5.5 Send Byte Protocol
START
SLAVE
ADDRESS
WR
ACK
REGISTER
ADDRESS
ACK
STOP
1 -> 0
YYYY_YYY
0
0
XXh
1
0 -> 1



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