TCS3404, TCS3414
DIGITAL COLOR SENSORS
TAOS137A − APRIL 2011
1
7
1
1
A
X
8
1
1
S
Slave Address
Wr
Data Byte
A
X
P
A
Acknowledge (this bit position may be 0 for an ACK or 1 for a NACK)
P
Stop Condition
Rd
S
Read (bit value of 1)
Start Condition
Sr
Wr
X
Repeated Start Condition
Write (bit value of 0)
Shown under a field indicates that that field is required to have a value of X
... Continuation of protocol
Master-to-Slave
Slave-to-Master
2
Figure 13. SMBus and I C Packet Protocol Element Key
1
7
1
1
8
1
1
S
Slave Address
Wr
A
Data Byte
A
P
Figure 14. SMBus Send Byte Protocol
1
7
1
1
8
1
A
1
1
S
Slave Address
Rd
A
Data Byte
P
Figure 15. SMBus Receive Byte Protocol
1
7
1
1
8
1
8
1
1
S
Slave Address
Wr
A
Command Code
A
Data Byte
A
P
Figure 16. SMBus Write Byte Protocol
1
7
1
1
8
1
1
7
1
1
8
1
A
1
1
S
Slave Address
Wr
A
Command Code
A
S
Slave Address
Rd
A
Data Byte Low
P
Figure 17. SMBus Read Byte Protocol
Copyright E 2011, TAOS Inc.
The LUMENOLOGY r Company
r
r
www.taosinc.com
11
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
