參數(shù)資料
型號(hào): TC1322EOA
廠商: Microchip Technology Inc.
英文描述: 12-Bit Digital-to-Analog Converter with Two-Wire Interface
中文描述: 12位數(shù)字到模擬轉(zhuǎn)換器兩線接口
文件頁(yè)數(shù): 7/16頁(yè)
文件大小: 445K
代理商: TC1322EOA
2002 Microchip Technology Inc.
DS21388B-page 7
TC1322
FIGURE 3-1:
SMBus PROTOCOLS
S
Address
7-Bits
R/W
0
ACK
Command
8-Bits
ACK
Data
ACK
P
0
0
0
1
1
1
1
8-Bits
Slave Address
Command Byte: selects
which register you are
writing to.
Data Byte: data goes
into the register set
by the command byte.
Write 1-Byte Format
S
Address
7-Bits
R/W
ACK
Command
8-Bits
ACK
Data
ACK
Data
8-Bits
ACK
P
8-Bits
Slave Address
Command Byte: selects
which register you are
writing to.
Data Byte: data goes
into the register set
by the command byte.
Write 2-Byte Format
Read 1-Byte Format
S
Address
R/W
ACK
Command
8-Bits
Command Byte: selects
which register you are
reading from.
ACK
S
Address
R/W
ACK Data
NACK
P
7-Bits
7-Bits
8-Bits
Data Byte: reads from
the register set by the
command byte.
Slave Address
Slave Address: repeated
due to change in data
flow direction.
Read 2-Byte Format
S
Address
R/W
ACK
Command
8-Bits
ACK
S
Address
R/W ACK
Data
ACK
NACK
P
Data
7-Bits
7-Bits
8-Bits
Data Byte: reads from
the register set by the
command byte.
8-Bits
Slave Address
Command Byte: selects
which register you are
reading from.
Slave Address: repeated
due to change in data
flow direction.
Receive 1-Byte Format
S
Address
R/W ACK
Data
NACK
NACK
P
7-Bits
8-Bits
Data Byte: reads data from
the register commanded by
the last read byte or write
byte transmission.
S = START Condition
P = STOP Condition
Shaded = Slave Transmission
Receive 1-Byte Format
S
Address
R/W
ACK
Data
Data
ACK
P
7-Bits
8-Bits
8-Bits
Data Byte: reads data from
the register commanded by
the last read byte or write
byte transmission.
S = START Condition
P = STOP Condition
Shaded = Slave Transmission
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