NOA1305

http://onsemi.com

9

NOA1305 Data Registers

interface. Registers are listed in Table 6. Default values are set on initial power up.

Address

Register

Type

Value (binary)

Description

Default (binary)

0x00

POWER_CONTROL

RW

0000 0000

Power Down

0000 1000

0000 1000

Power On

0000 1001

Test Mode 1 (reserved)

0000 1010

Test Mode 2 (fixed output 0x5555)

0000 1011

Test Mode 3 (fixed output 0xAAAA)

0x01

RESET

RW

0001 0000

Reset ALS data. Resets to 0000

0000 0000

0x02

INTEGRATION_TIME

RW

0000 0000

800 ms continuous measurement

0000 0010

0000 0001

400 ms continuous measurement

0000 0010

200 ms continuous measurement

0000 0011

100 ms continuous measurement

0000 0100

50 ms continuous measurement

0000 0101

25 ms continuous measurement

0000 0110

12.5 ms continuous measurement

0000 0111

6.25 ms continuous measurement

0x03

INT_SELECT

RW

0000 0001

L → H

0000 0011

0000 0010

H → L

0000 0011

Inactive, always H

0x04

INT_THRESH_LSB

RW

XXXX XXXX

Interrupt threshold, least significant bits

0000 0000

0x05

INT_THRESH_MSB

RW

XXXX XXXX

Interrupt threshold, most significant bits

0000 1000

0x06

ALS_DATA_LSB

R

XXXX XXXX

ALS measurement data, least significant bits

0000 0000

0x07

ALS_DATA_MSB

R

XXXX XXXX

ALS measurement data, most significant bits

0000 0000

0x08

DEVICE_ID_LSB

R

0001 1001

Device ID value, least significant bits

(1305 decimal, 0x0519 hex)

0001 1001

0x09

DEVICE_ID_MSB

R

0000 0101

Device ID value, most significant bits

(1305 decimal, 0x0519 hex)

0000 0101

7. Writing a value other than those specified for registers 0x00, 0x01, 0x02, 0x03 will cause the specified default value to be written instead.