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MCP98243 Datasheet(PDF) 29 Page - Microchip Technology

Part # MCP98243
Description  Memory Module Temperature Sensor w/ EEPROM for SPD
PDF  62 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP98243 Datasheet(HTML) 29 Page - Microchip Technology

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© 2009 Microchip Technology Inc.
DS22153C-page 29
MCP9843/98243
5.1.5
MANUFACTURER ID REGISTER
This register is used to identify the manufacturer of the
device in order to perform manufacturer specific
operation. The Manufacturer ID for the MCP9843/
98243 is 0x0054 (hexadecimal).
FIGURE 5-8:
Timing Diagram for Reading the Manufacturer ID Register (See Section 4.0 “Serial
Communication”).
REGISTER 5-6:
MANUFACTURER ID REGISTER (READ-ONLY)
→ ADDRESS ‘0000 0110’b
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
Manufacturer ID
bit 15
bit 8
R-0
R-1
R-0
R-1
R-0
R-1
R-0
R-0
Manufacturer ID
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-0
Device Manufacturer Identification Number
.
SDA
A
C
K
00
1
1
A
Manuf. ID Pointer
00
0
0
A
C
K
S
2
A
1
A
0
12
3
4
5
6
7
8
1
2
3
4
5
678
SCL
0
Address Byte
A
C
K
00
1
1
A
MSB Data
A
C
K
N
A
K
S
P
2
A
1
A
0
12
3
4
5
6
7
8
1
2
345
6
7
8
1
2
3
4
567
8
Address Byte
LSB Data
R
MCP9843/98243
MCP9843/98243
MCP9843/98243
Master
Master
W
SDA
SCL
11
0
00
0
0
0
00
0
0
1
0
1
0
10
0
Note:
It is not necessary to
select
the
register
pointer if it was set from
the previous read/write.



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