AS260 datasheet(32/45 Pages) ONSEMI

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AR0260 DS Rev. G Pub. 4/15 EN

©Semiconductor Components Industries, LLC,2015.

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Hardware Functions

Sequential Read, Start from Random Location

This sequence (Figure 25) starts in the same way as the single read from random location

(Figure 23). 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 25:

Sequential Read, Start from Random Location

Sequential Read, Start from Current Location

This sequence (Figure 26) starts in the same way as the single read from current 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 reads until L bytes have been read.

Figure 26:

Sequential Read, Start from Current Location

Single Write to Random Location

This sequence (Figure 27) 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 27:

Single Write to Random Location

Slave Address

A Reg Address[15:8]

Read Data

Reg Address[7:0]

Read Data

Slave Address

Previous Reg Address, N

Reg Address, M

M+1

M+2

M+1

M+3

Read Data

M+L-2

M+L-1

M+L

A S

Read Data

Previous Reg Address, N

N+1

N+2

N+L-1

N+L

Read Data

Slave Address

Read Data

A S

Slave Address

A Reg Address[15:8]

Reg Address[7:0]

Write Data

Previous Reg Address, N

Reg Address, M

M+1

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