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MCP9844 bảng dữ liệu(PDF) 25 Page - Microchip Technology

tên linh kiện MCP9844
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Trang chủ  http://www.microchip.com
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MCP9844 bảng dữ liệu(HTML) 25 Page - Microchip Technology

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 2013 Microchip Technology Inc.
DS20005192A-page 25
MCP9844
5.1.5
MANUFACTURER ID REGISTER
This register is used to identify the manufacturer of the
device in order to perform manufacturer specific
operations. The Manufacturer ID for the MCP9844 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
001
1
A
Manuf. ID Pointer
00
0
0
A
C
K
S
2
A
1
A
0
12
3
4
5
6
7
8
12
3
4
5
6
7
8
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
1
2
3
4
567
8
12
34
5
6
7
8
12
3
4
567
8
Address Byte
LSB Data
R
MCP9844
MCP9844
MCP9844
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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