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| ICS950104 Datasheet, PDF (4/19 Pages) Integrated Circuit Systems – Programmable System Clock Chip for PIII Processor | |||
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ICS950104
Advance Information
General I2C serial interface information for the ICS950104
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
How to Write:
Controller (Host)
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
ICS (Slave/Receiver)
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
How to Read:
Controlle r (Host)
Start Bit
ICS (Sla ve /Re ce ive r)
Address D3(H)
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
Byte Count
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
If 7H has been written to B8
ACK
Byte 7
Byte 18
Byte 19
Byte 20
Stop Bit
ACK
ACK
ACK
*See notes on the following page.
Third party brands and names are the property of their respective owners.
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
Byte18
Byte 19
Byte 20
4
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