VT5376

Interface

11/30

Figure 6.

Single read

As mentioned in the previous example, the read message is terminated with a negative

acknowledge (A) from the master.

Multiple location write

It is possible to write data bytes to consecutive adjacent internal registers without having to

send explicit indexes prior to sending each data byte.

Note:

An auto-increment write is assumed if no stop condition occurs.

Figure 7.

Multiple location write

Multiple location read: reading motion value example

Multiple locations can be read within a single read message. An auto-increment write is

assumed.

Note:

Registers are read until the master Nacks the data.

Figure 8.

Multiple location read: reading motion

S

A

Sr

A

A

15

No data write

Read data

from the master

NAck

P

A

SA

11

A

AA

C1

Incremental write

P

data written

@ index = 08

data written

@ index = 07

Incremental read

SA

A

Sr

Xmotion

Ymotion

No data write

AA

P

A