XGS datasheet(34/53 Pages) ONSEMI

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XGS Family

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Sequential READ, Start from Random Location

This sequence (Figure 41) starts in the same way as the

single READ from random location (Figure 39). 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 41. Sequential READ, Start from Random Location

Previous Reg Address, N

Reg Address, M

Slave Address

Reg Address[15:8]

M+1

Reg Address[7:0]

Read Data

Slave Address

M+L

M+L−1

M+L−2

M+1

M+2

M+3

Read Data

Sequential READ, Start from Current Location

This sequence (Figure 42) starts in the same way as the

single READ from current location (Figure 40). 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 42. Sequential READ, Start from Current Location

N+L

N+L−1

N+2

N+1

Previous Reg Address, N

Read Data

Slave Address

Read Data

Single WRITE to Random Location

This sequence (Figure 43) 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 43. Single WRITE to Random Location

Previous Reg Address, N

Reg Address, M

M+1

Slave Address

Reg Address[15:8]

Reg Address[7:0]

Write Data

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