MCP98243 Microchip Technology Inc., MCP98243 Datasheet - Page 25

• Manufacturer Part Number: MCP98243
• Description: Memory Module Temperature Sensor W/ Eeprom For Spd
• Manufacturer: Microchip Technology Inc.

FIGURE 5-5:
“Serial Communication”).
© 2009 Microchip Technology Inc.
SCL
SDA
• Writing 90°C to the T
• Reading from the T
SCL
SDA
SCL
SDA
S
1
0
S
S
2
0
1
0
Timing Diagram for Writing and Reading from the T
Address Byte
1
0
3
1
2
0
Address Byte
2
0
4
1
UPPER
3
1
UPPER
Address Byte
3
1
5
A
2
4
1
4
1
A
6
1
A
5
2
Register <0000 0101 1010 0000>b.
Register.
A
5
2
A
0
7
6
A
1
MCP98243
W
6
A
1
0
8
1
A
7
0
MCP98243
A
7
0
2
0
A
C
K
8
R
MCP98243
W
8
1
3
0
0
MSB Data
A
C
K
A
C
K
4
0
2
0
T
1
0
UPPER
1
0
0
3
5
0
2
0
2
0
1
6
4
0
T
3
0
MSB Data
Pointer
UPPER
3
0
7
5
0
0
4
0
MCP98243
4
0
8
1
6
0
0
5
Pointer
5
0
A
C
K
7
1
6
1
MCP98243
6
0
1
1
8
0
7
0
7
1
A
C
K
2
0
8
1
Master
MCP98243
0
8
3
1
A
C
K
LSB Data
UPPER
A
C
K
4
0
1
1
Note:
5
0
2
0
6
0
3
1
Register (See Section 4.0
LSB Data
MCP98243
7
0
4
0
MCP98243
It is not necessary to
select
pointer if it was set from
the previous read/write.
8
0
5
0
A
C
K
6
0
P
DS22153A-page 25
7
0
the
8
0
Master
N
A
K
register
P