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MCP47FVB01 数据表(PDF) 57 Page - Microchip Technology

部件名 MCP47FVB01
功能描述  8- /10- /12-Bit Single/Dual Voltage Output Volatile Digital-to-Analog Converters with I짼C??Interface
PDF  92 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP47FVB01 数据表(HTML) 57 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS20005405A-page 57
MCP47FVBXX
FIGURE 7-6:
I2C ACK/NACK Behavior (Read Command Example).
Write 1 Byte Command
SSlave Address
R
/
W
A
C
K Command
A
C
K
Master
S S
A
6
S
A
5
S
A
4
S
A
3
S
A
2
S
A
1
S
A
0
01 A
D
4
A
D
3
A
D
2
A
D
1
A
D
0
C
1
C
0
x1
S
r Slave Address
R
/
W
A
C
KData Byte
A
C
K Data Byte
A
C
KP
Master (Continued)
S
r
S
A
6
S
A
5
S
A
4
S
A
3
S
A
2
S
A
1
S
A
0
11 D
1
5
D
1
4
D
1
3
D
1
2
D
1
1
D
1
0
D
0
9
D
0
8
1D
0
7
D
0
6
D
0
5
D
0
4
D
0
3
D
0
2
D
0
1
D
0
0
1P
Ex.1 (No Command Error)
Master
S 1 1 0 0 000 01 000 01 11x 1
MCP47FVBXXA0
0
0
I2C™ Bus S 11 00 000 00 000 00 11x 0
Master (Continued)
S 000 01 001 1
1
1P
MCP47FVBXXA0 (Continued)
0 d d d d d d d d 0 d d d d d d d d 0
I2C Bus (Continued)
S 000 00 001 0d ddd dd dd0 dd ddd dd d0P
Ex.2 (With Command Error)
Master
S 1 1 0 0 000 01 011 11 00x 1
MCP47FVBXXA0
0
1
I2C Bus
S 11 00 000 00 011 11 00x 1
Master (Continued)
S 110 00 001 1
1
1P
MCP47FVBXXA0 (Continued)
0 ? ? ? ? ? ? ? ? 0 ? ? ? ? ? ? ? ? 1
I2C Bus (Continued)
S 110 00 001 0? ??? ?? ??0 ?? ??? ?? ?1P
Note 1:
Once a Command Error has occurred (Example 2), the MCP47FVBXX will NACK until a Start condition
occurs.
2:
For Command Error case (Example 2), the data read is from the register of the last valid address loaded
into the device.



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