SCA3000 Series

VTI Technologies Oy

3/ 43

www.vti.fi

Doc.Nr. 8257300A.07

Rev.A.07

3

Addressing Space ............................................................................................................ 15

3.1

Register Description................................................................................................................15

3.2

Non-volatile memory ...............................................................................................................16

3.3

Output Registers......................................................................................................................16

3.4

Configuration Registers ..........................................................................................................19

4

Serial Interfaces ...............................................................................................................24

4.1

SPI Interface .............................................................................................................................24

4.1.1

SPI frame format................................................................................................................24

4.1.2

SPI bus error conditioning ...............................................................................................25

4.1.3

Examples of SPI communication .....................................................................................25

4.1.3.1

Example of register read...........................................................................................................25

4.1.3.2

Example of decremented register read ...................................................................................26

4.1.3.3

Example of ring buffer read ......................................................................................................26

4.2

I

2C Interface ..............................................................................................................................27

4.2.1

I

2C frame format.................................................................................................................27

4.2.1.1

I

2C write mode............................................................................................................................27

4.2.1.2

I

2C read mode.............................................................................................................................27

4.2.1.3

Decremented register read .......................................................................................................27

4.2.2

Examples of I

2C communication......................................................................................28

5

Electrical Characteristics ................................................................................................ 29

5.1

Absolute maximum ratings.....................................................................................................29

5.2

Power Supply ...........................................................................................................................29

5.3

Digital I/O Specification...........................................................................................................29

5.3.1

Digital I/O DC characteristics ...........................................................................................29

5.3.2

Digital I/O level shifter.......................................................................................................29

5.3.3

SPI AC characteristics ......................................................................................................30

5.3.4

I

2C AC characteristics .......................................................................................................31

6

Package Characteristics.................................................................................................. 31

6.1

Dimensions...............................................................................................................................31

7

Application information ................................................................................................... 32

7.1

Pin Description.........................................................................................................................32

7.2

Recommended circuit diagram ..............................................................................................32

7.3

Recommended PWB layout ....................................................................................................33

7.4

Assembly instructions ............................................................................................................35

7.5

Tape and reel specifications...................................................................................................35

8

Data sheet references ...................................................................................................... 36