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| ICS94211AFLF Datasheet, PDF (3/17 Pages) Integrated Device Technology – Programmable System Frequency Generator for PII/III™ | |||
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ICS94211
General I2C serial interface information for the ICS94211
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 Write:
Controller (Host)
Start Bit
ICS (Slave/Receiver)
Address D2(H)
Dummy Command Code
Dummy Byte Count
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
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 Read:
Controller (Host)
Start Bit
ICS (Slave/Receiver)
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 B6
ACK
Byte 7
Byte 18
Byte 19
Byte 20
Stop Bit
ACK
ACK
ACK
*See notes on the following page.
0441Fâ08/24/05
If 12H has been written to B6
ACK
If 13H has been written to B6
ACK
If 14H has been written to B6
ACK
Stop Bit
Byte18
Byte 19
Byte 20
3
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