isl29028 Intersil Corporation, isl29028 Datasheet - Page 7

• Manufacturer Part Number: isl29028
• Description: Low Power Ambient Light And Proximity Sensor With Intelligent Interrupt And Sleep Modes
• Manufacturer: Intersil Corporation

BIT #
BIT #
6:5
2:1
BIT #
BIT #
7:0
BIT #
7
4
3
0
7:0
7:4
3:0
7:0
BIT #
7:0
ACCESS DEFAULT
ACCESS DEFAULT
TABLE 6. REGISTER 0x04 (PROX_HT) - INTERRUPT HIGH THRESHOLD FOR PROXIMITY SENSOR
TABLE 5. REGISTER 0x03 (PROX_LT) - INTERRUPT LOW THRESHOLD FOR PROXIMITY SENSOR
FLAG
FLAG
TABLE 8. REGISTER 0x06 (ALSIR_TH2) - INTERRUPT LOW/HIGH THRESHOLDS FOR ALS/IR
RW
RW
RW
RW
RW
ACCESS
ACCESS
ACCESS
RW
RW
RW
TABLE 9. REGISTER 0x07 (ALSIR_TH3) - INTERRUPT HIGH THRESHOLD FOR ALS/IR
RW
TABLE 7. REGISTER 0x05 (ALSIR_TH1) - INTERRUPT LOW THRESHOLD FOR ALS/IR
TABLE 4. REGISTER 0x02 (INTERRUPT) - PROX/ALS INTERRUPT CONTROL
0x00
0x00
0x00
0x00
0x00
0x00
0xFF
DEFAULT
DEFAULT
DEFAULT
0x00
0x0F
0x00
0xFF
7
ACCESS
(Prox Persist)
(ALS Persist)
PROX_FLAG
PROX_PRST
(ALS FLAG)
RW
BIT NAME
(Prox Flag)
BIT NAME
ALS_FLAG
ALS_PRST
Threshold)
INT_CTRL
(Interrupt
(Write 0)
PROX_HT
Control)
Unused
(Prox
(ALS/IR Low Thr.)
(ALS/IR High Thr.)
(ALS/IR Low Thr.)
(ALS/IR High Thr.)
ALSIR_LT[7:0]
ALSIR_LT[11:8]
ALSIR_HT[11:4]
ALSIR_HT[3:0]
BIT NAME
BIT NAME
BIT NAME
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”
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
Unused register bit - write 0
When = 0, no ALS interrupt event has occurred since power-on or last “clear”
When = 1, an ALS interrupt event occurred. Clearable by writing “0”
For bits 2:1 = (see the following)
00; set ALS_FLAG if 1 conversion is outside the set window
01; set ALS_FLAG if 4 conversions are outside the set window
10; set ALS_FLAG if 8 conversions are outside the set window
11; set ALS_FLAG if 16 conversions are outside the set window
When = 0, set INT pin low if PROX_FLAG or ALS_FLAG high (logical OR)
When = 1, set INT pin low if PROX_FLAG and ALS_FLAG high (logical AND)
8-bit interrupt high threshold for proximity sensing
DEFAULT
ISL29028
0x00
Lower 8 bits (of 12 bits) for ALS/IR low interrupt threshold
Lower 4 bits (of 12 bits) for ALS/IR high interrupt threshold
Upper 4 bits (of 12 bits) for ALS/IR low interrupt threshold
Upper 8 bits (of 12 bits) for ALS/IR high interrupt threshold
(Prox Threshold)
FUNCTION/OPERATION
FUNCTION/OPERATION
BIT NAME
PROX_LT
FUNCTION/OPERATION
FUNCTION/OPERATION
FUNCTION/OPERATION
8-bit interrupt low threshold for
proximity sensing
FUNCTION/OPERATION
March 2, 2010
FN6780.1