9248AG-192LFT Integrated Device Technology, 9248AG-192LFT Datasheet - Page 4

• Manufacturer Part Number: 9248AG-192LFT
• Description: ic,9248ag-192lft
• Manufacturer: Integrated Device Technology

ICS9248-192
0540F—10/27/05
How to Write:
• Controller (host) sends a start bit.
• Controller (host) sends the write address D2
• 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 first byte (Byte 0)
• ICS clock will acknowledge each byte one at a time.
Notes:
1.
2.
3.
4.
5.
6.
through byte 6
The ICS clock generator is a slave/receiver, I
latches for verification. Read-Back will support Intel PIIX4 "Block-Read" protocol.
The data transfer rate supported by this clock generator is 100K bits/sec or less (standard mode)
The input is operating at 3.3V logic levels.
The data byte format is 8 bit bytes.
To simplify the clock generator I
controller. The bytes must be accessed in sequential order from lowest to highest byte with the ability
to stop after any complete byte has been transferred. The Command code and Byte count shown above
must be sent, but the data is ignored for those two bytes. The data is loaded until a Stop sequence is
issued.
At power-on, all registers are set to a default condition, as shown.
Dummy Command Code
Dummy Byte Count
Controller (Host)
Start Bit
Address
Stop Bit
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
D2
The information in this section assumes familiarity with I
(H)
How to Write:
General I
ICS (Slave/Receiver)
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
2
C serial interface information
2
C interface, the protocol is set to use only "Block-Writes" from the
(H)
2
C component. It can read back the data stored in the
4
How to Read:
• Controller (host) will send start bit.
• Controller (host) sends the read address D3
• ICS clock will acknowledge
• ICS clock will send the byte count
• Controller (host) acknowledges
• ICS clock sends first byte (Byte 0) through byte 6
• Controller (host) will need to acknowledge each byte
• Controller (host) will send a stop bit
Controller (Host)
Address
Start Bit
Stop Bit
D3
ACK
ACK
ACK
ACK
ACK
ACK
ACK
ACK
2
C programming.
(H)
How to Read:
ICS (Slave/Receiver)
Byte Count
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
ACK
(H)