ICS94215 Просмотр технического описания (PDF) - Integrated Circuit Systems
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ICS94215 Datasheet PDF : 18 Pages
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ICS94215
General I2C serial interface information for the ICS94215
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
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:
• 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 was
(H)
written to byte 8).
• Controller (host) will need to acknowledge each byte
• Controller (host) will send a stop bit
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.
0442C—07/03/02
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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