AR0130CSSC00SPBA0-DR datasheet(35/53 Pages) ONSEMI

35 / 53 page

AR0130 DS Rev. L Pub. 6/15 EN

©Semiconductor Components Industries, LLC, 2015.

AR0130: 1/3-Inch CMOS Digital Image Sensor

Two-Wire Serial Register Interface

Sequential READ, Start from Current Location

This sequence (Figure 23) starts in the same way as the single READ from current loca-

tion (Figure 21). Instead of generating a no-acknowledge bit after the first byte of data

has been transferred, the master generates an acknowledge bit and continues to

perform byte READs until “L” bytes have been read.

Figure 23:

Sequential READ, Start from Current Location

Single WRITE to Random Location

This sequence (Figure 24) begins with the master generating a start condition. The slave

address/data direction byte signals a WRITE and is followed by the HIGH then LOW

bytes of the register address that is to be written. The master follows this with the byte of

write data. The WRITE is terminated by the master generating a stop condition.

Figure 24:

Single WRITE to Random Location

Sequential WRITE, Start at Random Location

This sequence (Figure 25) starts in the same way as the single WRITE to random location

(Figure 24). Instead of generating a no-acknowledge bit after the first byte of data has

been transferred, the master generates an acknowledge bit and continues to perform

byte WRITEs until “L” bytes have been written. The WRITE is terminated by the master

generating a stop condition.

Figure 25:

Sequential WRITE, Start at Random Location

Read Data

Previous Reg Address, N

N+1

N+2

N+L-1

N+L

Read Data

Slave Address

Read Data

A P

Slave Address

A Reg Address[15:8]

Reg Address[7:0]

Previous Reg Address, N

Reg Address, M

M+1

Write Data

Slave Address

A Reg Address[15:8]

Reg Address[7:0]

Previous Reg Address, N

Reg Address, M

M+1

M+2

M+1

M+3

M+L-2

M+L-1

M+L

Write Data

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