MCP9800 데이터 시트보기 (PDF) - Microchip Technology
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MCP9800 Datasheet PDF : 42 Pages
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MCP9800/1/2/3
• Writing to the CONFIG Register to change the resolution to 0.0625°C <0110 0000>b.
SCL
1 2 34 56 78
12345678
SDA
S
1
0
0
1
A
2
A
1
A
0
W
A
C
K
0
0
0
0
0
0
0
1
A
C
K
Address Byte
CONFIG Pointer
PIC18FXXX
PIC18FXXX
12345678
1
A
0
1
1
0
0
0
0
0
C
K
P
MSB Data
PIC18FXXX
• Reading the CONFIG Register.
SCL
1 2 34 5678
1 23 4 567 8
Note:
SDA
S1
0
0
1
A
2
A
1
A
0
W
A
C
K
0
0
0
0
0
0
0
1
A
C
K
Address Byte
CONFIG Pointer
PIC18FXXX
PIC18FXXX
It is not necessary to
select the Register
Pointer if it was set
from the previous read/
write
(see Section 4.1.1).
SCL
1 2 34 5678
12345678
SDA
S1
0
0
1
A
2
A
1
A
0
A
R
C
K
0
1
1
0
0
0
0
0
N
AP
K
Address Byte
PIC18FXXX
Data
FIGURE 5-4:
Timing Diagram for Writing and Reading from the Configuration Register (See
Section 5.3.2 “Sensor Configuration Register (CONFIG)”).
2010 Microchip Technology Inc.
DS21909D-page 19
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