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ISL29027 Fiches technique(PDF) 6 Page - Intersil Corporation

No de pièce ISL29027
Description  Proximity Sensor with Intelligent Interrupt and Sleep Modes
Download  13 Pages
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Fabricant  INTERSIL [Intersil Corporation]
Site Internet  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL29027 Fiches technique(HTML) 6 Page - Intersil Corporation

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ISL29027
6
FN7815.0
February 7, 2011
Register Descriptions
TABLE 2. REGISTER 0x00 (RESERVED)
BIT #
ACCESS
DEFAULT
NAME
FUNCTION/OPERATION
7:0
RO
(n/a)
(n/a)
Reserved - no need to read or write
TABLE 3. REGISTER 0x01 (CONFIGURE) - PROX CONFIGURATION
BIT #
ACCESS
DEFAULT
NAME
FUNCTION/OPERATION
7RW
0x00
PROX_EN
(Prox Enable)
When = 0, proximity sensing is disabled
When = 1, continuous proximity sensing is enabled. Prox data will be ready 0.54ms after this
bit is set high
6:4
RW
0x00
PROX_SLP
(Prox Sleep)
For bits 6:4 = (see the following)
111; sleep time between prox IR LED pulses is 0.0ms (run continuously)
110; sleep time between prox IR LED pulses is 12.5ms
101; sleep time between prox IR LED pulses is 50ms
100; sleep time between prox IR LED pulses is 75ms
011; sleep time between prox IR LED pulses is 100ms
010; sleep time between prox IR LED pulses is 200ms
001; sleep time between prox IR LED pulses is 400ms
000; sleep time between prox IR LED pulses is 800ms
3RW
0x00
PROX_DR
(Prox Drive)
When = 0, IRDR behaves as a pulsed 110mA current sink
When = 1, IRDR behaves as a pulsed 220mA current sink
2RW
0x00
Unused
(Write 0)
Unused register bit (write 0)
1RW
0x00
Unused
(Write 0)
Unused register bit (write 0)
0RW
0x00
Unused
(Write 0)
Unused register bit (write 0)
TABLE 4. REGISTER 0x02 (INTERRUPT) - PROX INTERRUPT CONTROL
BIT #
ACCESS
DEFAULT
BIT NAME
FUNCTION/OPERATION
7FLAG
0x00
PROX_FLAG
(Prox Flag)
When = 0, no Prox interrupt event has occurred since power-on or last “clear”
When = 1, a Prox interrupt event occurred. Clearable by writing “0”
6:5
RW
0x00
PROX_PRST
(Prox Persist)
For bits 6:5 = (see the following)
00; set PROX_FLAG if 1 conversion result trips the threshold value
01; set PROX_FLAG if 4 conversion results trip the threshold value
10; set PROX_FLAG if 8 conversion results trip the threshold value
11; set PROX_FLAG if 16 conversion results trip the threshold value
4RW
0x00
Unused
(Write 0)
Unused register bit - write 0
3RW
0x00
Unused
(Write 0)
Unused register bit - write 0
2:1
RW
0x00
Unused
(Write 0)
Unused register bit - write 0
0RW
0x00
Unused
(Write 0)
Unused register bit - write 0
TABLE 5. REGISTER 0x03 (PROX_LT) - INTERRUPT LOW THRESHOLD FOR PROXIMITY SENSOR
BIT #
ACCESS
DEFAULT
BIT NAME
FUNCTION/OPERATION
7:0
RW
0x00
PROX_LT
(Prox Threshold)
8-bit interrupt low threshold for
proximity sensing


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