ICS94236 datasheet(3/17 Pages) ICST

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ICS94236

0451A

—01/10/03

General I

2C serial interface information for the ICS94236

How to Write:

• Controller (host) sends a start bit.

• Controller (host) sends the write address D2

(H)

• ICS clock will acknowledge

• Controller (host) sends a dummy command code

• ICS clock will acknowledge

• Controller (host) sends a dummy byte count

• ICS clock will acknowledge

• Controller (host) starts sending Byte 0 through Byte 20

(see Note)

• ICS clock will acknowledge each byte one at a time

• Controller (host) sends a Stop bit

How to Read:

• Controller (host) will send start bit.

• Controller (host) sends the read address D3

(H)

• ICS clock will acknowledge

• ICS clock will send the byte count

• Controller (host) acknowledges

• ICS clock sends Byte 0 through byte 8 (default)

• ICS clock sends Byte 0 through byte X (if X

(H) was

written to byte 8).

• Controller (host) will need to acknowledge each byte

• Controller (host) will send a stop bit

*See notes on the following page.

Controller (Host)

ICS (Slave/Receiver)

Start Bit

Address D2(H)

Dummy Command Code

Dummy Byte Count

Byte 0

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

Byte 6

Byte 18

Byte 19

Byte 20

Stop Bit

How to Write:

Controlle r (Host)

ICS (Sla ve /Re ce ive r)

Start Bit

Address D3(H)

ACK

If 7H has been written to B8

ACK

If 12H has been written to B8

ACK

If 13H has been written to B8

ACK

If 14H has been written to B8

ACK

Stop Bit

How to Read:

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