TSL2671

DIGITAL PROXIMITY DETECTOR

TAOS118 − JANUARY 2011

13

The LUMENOLOGY

r Company

r

r

Copyright

E 2011, TAOS Inc.

www.taosinc.com

a set of registers that provide access to device control functions and output data. The devices support the 7-bit

TSL26717 devices are at slave address 0x29.

During a write operation, the first byte written is a command byte followed by data. In a combined protocol, the

first byte written is the command byte followed by reading a series of bytes. If a read command is issued, the

register address from the previous command will be used for data access. Likewise, if the MSB of the command

is not set, the device will write a series of bytes at the address stored in the last valid command with a register

address. The command byte contains either control information or a 5-bit register address. The control

commands can also be used to clear interrupts.

A

Acknowledge (0)

N

Not Acknowledged (1)

P

Stop Condition

R

Read (1)

S

Start Condition

S

Repeated Start Condition

W

Write (0)

...

Continuation of protocol

Master-to-Slave

Slave-to-Master

W

7

Data Byte

Slave Address

S

1

AA

A

8

11

1

8

Command Code

1

P

1

...

R

7

Data

Slave Address

S

1

AA

A

8

11

1

8

Data

1

P

1

...

W

7

Data

Slave Address

S

1

AR

A

8

11

1

8

1

1

Command Code

S

1

A

Data

A

A

81

8

Data

1

P

1

...