Confidential

Datasheet Version 1.1

Mar. 2015. Revision 1.1

MagnaChip Semiconductor Ltd.

15

READING FROM MULTIPLE REGISTERS WITH INCREMENTAL ADDRESSING

Reading from multiple registers starts in the same way like reading from a single register. As soon as the

first register is read, the register address is automatically incremented. If the master generates an

acknowledge pulse after receiving the data from the first register, then reading of the next register can start

immediately without sending the device address and the register address again. The last acknowledge

pulse before the STOP bit is not required.

7bit DEVICE

ADDRESS

8bit ADDRESS OF

REGISTER

DATA i

7bit DEVICE

ADDRESS

S

T

R

T

M

S

B

L

S

B

L

S

B

M

S

B

M

S

B

W

/

R

A

C

K

A

C

K

L

S

B

A

C

K

W

/

R

S

T

R

T

DATA i+1

DATA i+n-1

DATA i+n

A

C

K

M

S

B

L

S

B

A

C

K

M

S

B

L

S

B

A

C

K

M

S

B

L

S

B

A

C

K

M

S

B

L

S

B

S

T

O

P

R

E

A

D

W

R

T

N

O

A

C

K

SCL

SDA

Figure 28 Reading from multiple registers