|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| ||||

|||||||||||||||||

2015-07-0044

PT0559

08/05/15

6

PI4IOE5V9570

4-bit general purpose outputs

for 1MHz I

PI4IOE5V9570 Block Diagram

Details Description

a. Device Address

b7(MSB)

b6

b5

b4

b3

b2

b1

b0

Address Byte

0

1

0

0

1

0

0

R/W

b. Software Reset Call

General Call address: allows resetting the device through the I

b7(MSB)

b6

b5

b4

b3

b2

b1

b0

General Call

Address

0

0

0

0

0

0

0

0

c. Software Reset

The Software Reset Call allows all the devices in the I

formatted I

hanging the bus.

The Software Reset sequence is defined as following:

1. A START command is sent by the I

2. The reserved General Call I

3. The device acknowledges after seeing the General Call address ‘0000 0000’ (00h) only. If the R/W bit is set to 1 (read), no

acknowledge is returned to the I

4. Once the General Call address has been sent and acknowledged, the master sends 1 byte. The value of the byte must be

equal to 06h.

a. The device acknowledges this value only. If the byte is not equal to 06h, the device does not acknowledge it.

Fig 3: Block diagram of PI4IOE5V9570