Digital color sensor

S11059-02DT/-03DS

3

Register map

Adrs

Function

bit

76

5

4

3

2

1

0

00

Control

ADC reset

1: Reset

0: Operation

Standby function

1: Standby mode

0: Operating mode

Standby function

monitor

-

Gain selection

1: High gain

0: Low gain

Integration mode

1: Manual setting mode

0: Fixed period mode

Integration time setting

(00) 87.5 μs, (01) 1.4 ms

(10) 22.4 ms, (11) 179.2 ms

01

Manual timing register

Integration time manual setting register (MSB)

02

Integration time manual setting register (LSB)

03

Sensor data register

(red)

Output data (red, MSB)

04

Output data (red, LSB)

05

Sensor data register

(green)

Output data (green, MSB)

06

Output data (green, LSB)

07

Sensor data register

(blue)

Output data (blue, MSB)

08

Output data (blue, LSB)

09

Sensor data register

(infrared)

Output data (infrared, MSB)

0A

Output data (infrared, LSB)

Adrs 00 bit 7: Asserting this bit to “1”, the ADC block is reset. The register data is not reset. To start the operation, set this bit to “0”.

Adrs 00 bit 6: Asserting this bit to “1” the device goes into standby mode. The ADC block stops its operation. The register data is not

reset. To start the operation, set this bit to “0”.

Adrs 00 bit 5: This monitors auto standby function. “1” means standby mode. This is read only.

Adrs 00 bit 3: Gain selection bit. “1” is high gain mode and “0” is low gain mode. This bit is selecting the photodiode area. The size ratio

of high gain photodiode area and low gain photodiode area is 10 : 1. Therefore the gain ratio is 10 times from low to

high.

Adrs 00 bit 2: Asserting this bit to “1”, the device goes into manual setting mode. Deasserting this bit to 0, goes into fixed period mode.

In manual setting mode, the S11059-02DT automatically goes to standby mode after a measurement is made. In fixed

period mode, measurements are continuously repeated.

Adrs 00 bit 1,0: These bits select the period of internal basis clock. The period is equal to integration time per color in fixed period mode.

“00” is 87.5 us, “01” is 1.4 ms, “10” is 22.4 ms, “11” is 179.2 ms. In manual setting mode, “00” is 175 μs, “01” is 2.8 ms, “10”

is 44.8 ms, “11” is 368 ms. The integration time per color is set to multiple value (Adrs 01 & 02) with the period.

Adrs 01 & 02: This is a multiple value setting in manual setting mode, and can be set to a minimum of 0x0000 and a maximum of

0xFFFF (65535). This is used to set how far to expand the integration time per color which specified by “Integration time

setting” (Tint). For example, if you want to set the integration time per color to 546 ms, set 175 μs by Tint=“00” and then

set this register to N=3120 (0xC30).

Initial setting [Low gain, manual setting mode, Tint=00 (175 μs), integartion time 546 ms/ch]

Adrs

Function

bit

Hex

76543210

00

Control

1

1

1

-

0

1

0

0

0xE4

01

Manual timing register

0

0

0

0

1

1

0

0

0x0C

02

0

0

1

1

0

0

0

0

0x30

Mode

Manual timing register

(Adrs 01 & 02)

Integration time setting (Tint)

00

01

10

11

Fixed period mode

Disabled

87.5 μs

1.4 ms

22.4 ms

179.2 ms

Manual setting mode

N

175 × N μs

2.8 × N ms

44.8 × N ms

358.4 × N ms

command is changed to read mode. The values are kept until next read cycle.