HV7358 datasheet(30/50 Pages) MICROCHIP

30 / 50 page

HV7358

DS20005918A-page 30

 2018 Microchip Technology Inc.

FIGURE 4-15:

Complete Data R/W on the I2C Bus.

FIGURE 4-16:

I2C Bus Timing Diagram.

FIGURE 4-17:

I2C Write Operation Diagram.

FIGURE 4-18:

I2C Read Operation Diagram.

SDA

SCL

START

CONDITION

ADDRESS

R/W

ACK

DATA

ACK

DATA

ACK

STOP

CONDITION

1-7

SDA

SCL

tBUF

tLOW

tHD;STA

tSP

tSU;STO

tSU;STA

tSU;DAT

tHIGH

tHD;DAT

tHD;STA

From Master to Slave

From Slave to Master

A = Acknowledge (SDA Low)

A = Not Acknowledge (SDA High)

S = Start Condition

P = Stop Condition

SLAVE

ADDR

R/W

‘

0’

(Write)

ADDR[7:0]

DATA

D[7:0]

A/A

Data Transferred

(n-byte + Acknowledges)

‘

1101’

(Fixed)

DEVICE

ADDR

A[2:0]

(Pins)

From Master to Slave

From Slave to Master

A = Acknowledge (SDA Low)

A = Not Acknowledge

S = Start Condition

P = Stop Condition

R/W

‘

0’

(Write)

ADDR[7:0]

DATA

D[7:0]

R/W

‘

1’

(Read)

DATA

D[7:0]

A P

Read Back Data

(n-byte + Acknowledge)

Data at

the ADDR

Data at

the ADDR + 1

Start Reading

Address Pointer

SLAVE

ADDR

‘

1101’

(Fixed)

DEVICE

ADDR

A[2:0]

(Pins)

SLAVE

ADDR

‘

1101’

(Fixed)

DEVICE

ADDR

A[2:0]

(Pins)

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