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ISL29033IROZ-T7 Datasheet(PDF) 8 Page - Intersil Corporation

Part # ISL29033IROZ-T7
Description  Ultra-Low Lux, Low Power, Integrated Digital Ambient Light Sensor with Interrupt Function
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL29033IROZ-T7 Datasheet(HTML) 8 Page - Intersil Corporation

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ISL29033
8
FN7656.2
February 25, 2013
Register Set
There are eight registers available in the ISL29033. Table 1
summarizes their functions.
Command Register I 00 (Hex)
The first command register has the following functions:
1. Operation Mode: Bits 7, 6, and 5. These three bits determine
the operation mode of the device (Table 2). Interrupt flag:
Bit 2. This is the status bit of the interrupt (Table 3). The bit is
set to logic high when the interrupt thresholds have been
triggered (out of threshold window), and to logic low when not
yet triggered. When activated and the interrupt is triggered,
the INT pin goes low, and the interrupt status bit goes high
until the status bit is polled through the I2C read command.
Both the INT output and the interrupt status bit are
automatically cleared at the end of the 8-bit (00h) command
register transfer.
FIGURE 4. I2C WRITE TIMING DIAGRAM SAMPLE
START
W
A
A
A6 A5 A4 A3 A2 A1 A0 W
A R7 R6 R5 R4 R3 R2 R1 R0 A B7 B6 B5 B4 B3 B2 B1 B0
A
A
1
2
615
948
STOP
SDA DRIVEN BY MASTER
FUNCTIONS
REGISTER ADDRESS
DEVICE ADDRESS
SDA DRIVEN BY MASTER
SDA DRIVEN BY MASTER
I2C DATA
I2C SDA IN
I2C SDA OUT
I2C CLK IN
AA
34
5
7
8
9
2
3
4
6
7
8
1
2
3
5
67
9
A
TABLE 1. REGISTER SET
ADDR
REG NAME
BIT
76
5
4
3
2
1
0
DEFAULT
00h
COMMANDI
OP2
OP1
OP0
0
0
FLAG
PRST1
PRST0
00h
01h
COMMANDII
0
0
0
0
RES1
RES0
RANGE1
RANGE0
00h
02h
DATALSB
D7
D6
D5
D4
D3
D2
D1
D0
00h
03h
DATAMSB
D15
D14
D13
D12
D11
D10
D9
D8
00h
04h
INT_LT_LSB
TL7
TL6
TL5
TL4
TL3
TL2
TL1
TL0
00h
05h
INT_LT_MSB
TL15
TL14
TL13
TL12
TL11
TL10
TL9
TL8
00h
06h
INT_HT_LSB
TH7
TH6
TH5
TH4
TH3
TH2
TH1
TH0
FFh
07h
INT_HT_MSB
TH15
TH14
TH13
TH12
TH11
TH10
TH9
TH8
FFh
TABLE 2. OPERATION MODE
BITS 7 TO 5
OPERATION
000
Power-down the device
001
Reserved (Do not use)
010
Reserved (Do not use)
100
Reserved (Do not use)
101
ALS continuous
110
IR continuous
111
Reserved (Do not use)
TABLE 3. INTERRUPT FLAG
BIT 2
OPERATION
0
Interrupt is cleared or not triggered yet
1
Interrupt is triggered


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