TCS3771 Datasheet, PDF (18/33 Pages) ams AG – COLOR LIGHT-TO-DIGITAL CONVERTER with PROXIMITY SENSING

TCS3771
COLOR LIGHT-TO-DIGITAL CONVERTER
with PROXIMITY SENSING
TAOS110A − MARCH 2011
Command Register
The command registers specifies the address of the target register for future write and read operations.
Table 2. Command Register
7
6
5
4
3
2
1
0
COMMAND _COMMAND
FIELD
lid COMMAND
TYPE
BITS
7
6:5
Technicaaml ^{scoAnGtent still va ADD}
4:0
TYPE
ADD
−−
DESCRIPTION
Select Command Register. Must write as 1 when addressing COMMAND register.
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.
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−register for following write
and read transactions. The field values listed below apply only to special function commands:
FIELD VALUE
READ VALUE
00000
Normal — no action
00101
Proximity interrupt clear
00110
RGBC interrupt clear
00111
Proximity and RGBC interrupt clear
other
Reserved — Do not write
RGBC/Proximity Interrupt Clear. Clears any pending RGBC/Proximity interrupt. This special function is
self clearing.
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r
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Copyright E 2011, TAOS Inc.
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