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ISL29028A Fiches technique(PDF) 6 Page - Intersil Corporation |
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ISL29028A Fiches technique(HTML) 6 Page - Intersil Corporation |
6 / 16 page ISL29028A 6 FN7721.1 February 8, 2011 Register Map There are ten 8-bit registers accessible via I2C. Registers 0x1 and 0x2 define the operation mode of the device. Registers 0x3 through 0x7 store the various ALS/IR/Prox thresholds which trigger interrupt events. Registers 0x8 through 0xA store the results of ALS/IR/Prox ADC conversions. Register Descriptions TABLE 1. ISL29028A REGISTERS AND REGISTER BITS ADDR REG NAME BIT 7 654 321 0 DEFAULT 0x00 (n/a) (Reserved) (n/a) 0x01 CONFIGURE PROX EN PROX_SLP[2:0] PROX_DR ALS_EN ALS_RANGE ALSIR_MODE 0x00 0x02 INTERRUPT PROX_FLAG PROX_PRST[1:0] (Write 0) ALS_FLAG ALS_PRST[1:0] INT_CTRL 0x00 0x03 PROX_LT PROX_LT[7:0] 0x00 0x04 PROX_HT PROX_HT[7:0] 0xFF 0x05 ALSIR_TH1 ALSIR_LT[7:0] 0x00 0x06 ALSIR_TH2 ALSIR_HT[3:0] ALSIR_LT[11:8] 0xF0 0x07 ALSIR_TH3 ALSIR_HT[11:4] 0xFF 0x08 PROX_DATA PROX_DATA[7:0] 0x00 0x09 ALSIR_DT1 ALSIR_DATA[7:0] 0x00 0x0A ALSIR_DT2 (Unused) ALSIR_DATA[11:8] 0x00 0x0E TEST1 (Write as 0x00) 0x00 0x0F TEST2 (Write as 0x00) 0x00 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/ALS 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 ALS_EN (ALS Enable) When = 0, ALS/IR sensing is disabled When = 1, continuous ALS/IR sensing is enabled with new data ready every 100ms 1RW 0x00 ALS_RANGE (ALS Range) When = 0, ALS is in low-lux range When = 1, ALS is in high-lux range 0RW 0x00 ALSIR_MODE (ALSIR Mode) When = 0, ALS/IR data register contains visible ALS sensing data When = 1, ALS/IR data register contains IR spectrum sensing data |
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