TCS3472_17 Datasheet, PDF (21/40 Pages) ams AG – Red, Green, Blue (RGB), and Clear Light

TCS3472 − Register Description
Figure 25:
Command Register
7
CMD
6
5
TYPE
Command Register
The command register specifies the address of the target
register for future write and read operations.
4
3
2
1
0
ADDR/SF
Fields
CMD
TYPE
ADDR/SF
Bits
7
6:5
4:0
Description
Select Command Register. Must write as 1 when addressing COMMAND register.
Selects type of transaction to follow in subsequent data transfers:
FIELD VALUE
TRANSACTION TYPE
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.
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.
ams Datasheet
[v1-02] 2016-Feb-08
Page 21
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