MCP960X datasheet(25/57 Pages) MICROCHIP

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 2015-2021 Microchip Technology Inc.

DS20005426G-page 25

MCP960X/L0X/RL0X

FIGURE 4-6:

Timing Diagram to Sequential Read All Registers Starting from TH Register.

TC MSB Data

TC LSB Data

T MSB Data

Device ID LSB

Note: this is an example pseudo routine:

i2c_start();

// send START command

i2c_write(b’1100 0000’);

// WRITE Command

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

i2c_write(b’0000 0000’);

// Write TH register to set the starting register for sequential read

i2c_stop();

// send STOP command

i2c_start();

// send START command

i2c_write(b’1100 0001’);

// READ Command

// also, make sure bit 0 is set ‘1’

for (i=0; i<29, i++){

Data_Buffer[i] = i2c_read(ACK);

// READ 8 bits (with t

STRETCH delay)

// and Send ACK bit

}

Data_Buffer[i] = i2c_read(NAK);

// READ 8 bits (with t

STRETCH delay)

// and Send NAK bit

i2c_stop();

// send STOP command

SDA

000

678

SCL

Address Byte

Device*

Pointer to

TH Register

100

TH MSB Data

678

345

Address Byte

TH LSB Data

Host

SDA

SCL

MCP960X/L0X/RL0X Clock Stretching,

tSTRETCH

Device*

Host

Device*

MCP960X/L0X/RL0X Clock Stretching,

tSTRETCH

Host

*MCP960X/L0X/RL0X

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