HT7M2136 datasheet(20/25 Pages) HOLTEK

20 / 25 page

Rev. 1.20

June 17, 2016

HT7M2126/27/36/56/76

10. Firmware Version

• Firmware Version → ADDRESS: 0AH

Bit

Name

Ver15

Ver14

Ver13

Ver12

Ver11

Ver10

Ver9

Ver8

R/W

Bit

Name

Ver7

Ver6

Ver5

Ver4

Ver3

Ver2

Ver1

Ver0

R/W

Bit 15~0

Ver15~Ver0:FirmwareVersion

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(0x0a);

// Write PID 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 = 0x02)

// and Send ACK bit

LowerByte = i2c_read(NAK);

// READ 8 bits (LowerByte = 0x00)

// and Send NAK bit

• EEPROM Planning

Thestorageareaisusedtorecordtheuser-defineddata

00h: user define

01h: user define

02h: user define

03h: user define

04h: user define

05h: user define

06h: user define

07h: user define

08h: user define

09h: user define

0Ah: user define

0Bh: user define

0Ch: user define

0Dh: user define

0Eh: user define

0Fh: user define

Note: EEPROM 16×8

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