NCV7708

http://onsemi.com

8

Figure 2. SPI Timing Diagram

CSB

SO

89

SI

SO

SCLK

12

11

10

CSB

SCLK

3

1

2

5

4

7

6

SPI Communication

Standard 16−bit communication has been implemented

for the communication of this IC to turn drivers on and off,

and to report faults. (Reference the SPI Communication

Frame Format Diagram). The LSB (Least Significant Bit) is

clocked in first.

Communication is implemented as follows:

1. CSB goes low to allow serial data transfer.

2. A 16 bit word is clocked (SCLK) into the SI

(serial input) pin.

3. CSB goes high to transfer the clocked in

information to the data registers.

(Note: SO is tristate when CSB is high.)