Rev. 1.20

17

June 17, 2016

HT7M2126/27/36/56/76

UpperByte = i2c_read(ACK);

// READ 8 bits (UpperByte = High 4bit)

// and Send ACK bit

LowerByte = i2c_read(NAK);

// READ 8 bits (LowerByte = Low 8bit)

// and Send NAK bit

6. Optical Sensor RAW DATA

• Optical Sensor A/D CONVERSION RAW DATA → ADDRESS: 06H

Bit

15

14

13

12

11

10

9

8

Name

—

—

—

—

LumiRAW11 LumiRAW10 LumiRAW9 LumiRAW8

R/W

—

—

—

—

R

R

R

R

Bit

7

6

5

4

3

2

1

0

Name

LumiRAW7 LumiRAW6 LumiRAW5 LumiRAW4 LumiRAW3 LumiRAW2 LumiRAW1 LumiRAW0

R/W

R

R

R

R

R

R

R

R

Bit 15~12

Unimplemented read as 0

Bit 11~0

LumiRAW11~LumiRAW0: Optical Sensor Signal A/D Conversion Raw Data

Note: To Read the environment brightness value that can be used to setting brightness threshold

value.

(To read special brightness and then to write in lumi (02H Msb) registers)

Note:Thisisanexampleroutine:(SeeAppendixB:“SourceCode”)

i2c_start();

// send START command

i2c_write(AddressByte & 0xFE); // WRITE Command

// also, make sure bit 0 is cleared ‘0’

i2c_write(0x06);

// Write PHORAW Register

i2c_start();

// send Repeat START command

i2c_write(AddressByte | 0x01); // READ Command

// also, make sure bit 0 is set ‘1’

UpperByte = i2c_read(ACK);

// READ 8 bits (UpperByte = High 4bit)

// and Send ACK bit

LowerByte = i2c_read(NAK);

// READ 8 bits (LowerByte = Low 8bit)

// and Send NAK bit

7. Temperature RAW DATA

• Temperature Sensor A/D CONVERSTION RAW DATA → ADDRESS: 07H

Bit

15

14

13

12

11

10

9

8

Name

—

—

—

—

TsRAW11

TsRAW10

TsRAW9

TsRAW8

R/W

—

—

—

—

R

R

R

R

Bit

7

6

5

4

3

2

1

0

Name

TsRAW7

TsRAW6

TsRAW5

TsRAW4

TsRAW3

TsRAW2

TsRAW1

TsRAW0

R/W

R

R

R

R

R

R

R

R

Bit 15~12

Unimplemented read as 0

Bit 11~0

TsRAW11~TsRAW0: Temperature Signal A/D Conversion Raw data