TCS3472

COLOR LIGHT-TO-DIGITAL CONVERTER

with IR FILTER

TAOS135 − AUGUST 2012

14

r

r

Copyright

E 2012, TAOS Inc.

The LUMENOLOGY

r Company

www.taosinc.com

Command Register

The command register specifies the address of the target register for future write and read operations.

Table 4. Command Register

6

75

4

ADDR/SF

2

31

0

COMMAND

CMD

TYPE

− −

FIELD

BITS

DESCRIPTION

CMD

7

Select Command Register. Must write as 1 when addressing COMMAND register.

TYPE

6:5

Selects type of transaction to follow in subsequent data transfers:

FIELD VALUE

INTEGRATION TIME

00

Repeated byte protocol transaction

01

Auto-increment protocol transaction

10

Reserved — Do not use

11

Special function — See description below

Byte protocol will repeatedly read the same register with each data access.

Block protocol will provide auto-increment function to read successive bytes.

ADDR/SF

4:0

Address field/special function field. Depending on the transaction type, see above, this field either

specifies a special function command or selects the specific control-status-data register for subsequent

read and write transactions. The field values listed below only apply to special function commands:

FIELD VALUE

READ VALUE

00110

Clear channel interrupt clear

other

Reserved — Do not write

The Clear channel interrupt clear special function clears any pending interrupt and is self-clearing.