SS8018TR SSC [Silicon Standard Corp.], SS8018TR Datasheet - Page 8

• Manufacturer Part Number: SS8018TR
• Manufacturer: SSC [Silicon Standard Corp.]

Rev.2.01 6/06/2003
Write Byte Format
Slave Address: equivalent to chip- select line of a 3-wire interface
Command Byte: selects which register you are writing to
Data byte: data goes into the register set by the command byte (to set thresholds, configuration masks,
Read Byte Format
Slave Address: equivalent to chip- select line
Command Byte: selects which register you are reading from
Slave Address: repeated due to change in data-flow direction
Data byte: reads from the register set by the command byte
Send Byte Format
Command Byte: sends command with no data , usually used for one-shot command
Receive Byte Format
Data Byte: reads data from the register commanded by the last Read Byte or Write Byte transmission; also
S = Start condition Shaded = Slave transmission P = Stop condition /// = Not acknowledged
S
S
ADDRESS
S
S
used for SMBus Alert Response return address
and sampling rate)
7 bits
ADDRESS
7 bits
ADDRESS
ADDRESS
WR
7 bits
7 bits
ACK
WR
COMMAND
www.SiliconStandard.com
WR
RD
ACK
8bits
Figure 3. SMBus Protocols
COMMAND
ACK
8 bits
ACK
ACK
S
ADDRESS
COMMAND
ACK
7bits
DATA
8 bits
8 bits
RD
DATA
8 bits
ACK
ACK
///
ACK
DATA
8 bits
///
P
P
SS8018
P
1
P
8 of 14