932S208YFLNT IDT [Integrated Device Technology], 932S208YFLNT Datasheet - Page 11

• Manufacturer Part Number: 932S208YFLNT
• Description: Programmable Timing Control HubTM for Next Gen P4TM Processor
• Manufacturer: IDT [Integrated Device Technology]

IDT
ICS932S208
Programmable Timing Control Hub
TM
Programmable Timing Control Hub
How to Write:
• Controller (host) sends a start bit.
• Controller (host) sends the write address D2
• ICS clock will acknowledge
• Controller (host) sends the begining byte location = N
• ICS clock will acknowledge
• Controller (host) sends the data byte count = X
• ICS clock will acknowledge
• Controller (host) starts sending Byte N through
• ICS clock will acknowledge each byte one at a time
• Controller (host) sends a Stop bit
Byte N + X -1
(see Note 2)
WR
T
P
Beginning Byte N
Data Byte Count = X
Slave Address D2
Beginning Byte = N
Controller (Host)
Byte N + X - 1
Index Block Write Operation
General I
starT bit
stoP bit
WRite
(H)
2
C serial interface information for the ICS932S208
TM
for Next Gen P4
TM
ICS (Slave/Receiver)
for Next Gen P4
ACK
ACK
ACK
ACK
ACK
TM
Processor
(H)
TM
Processor
11
How to Read:
• Controller (host) will send start bit.
• Controller (host) sends the write address D2
• ICS clock will acknowledge
• Controller (host) sends the begining byte
• ICS clock will acknowledge
• Controller (host) will send a separate start bit.
• Controller (host) sends the read address D3
• ICS clock will acknowledge
• ICS clock will send the data byte count = X
• ICS clock sends Byte N + X -1
• ICS clock sends Byte 0 through byte X (if X
• Controller (host) will need to acknowledge each byte
• Controllor (host) will send a not acknowledge bit
• Controller (host) will send a stop bit
location = N
was written to byte 8)
WR
RD
RT
T
N
P
Slave Address D2
Slave Address D3
Beginning Byte = N
Controller (Host)
Index Block Read Operation
Not acknowledge
ACK
ACK
Repeat starT
starT bit
stoP bit
WRite
ReaD
(H)
(H)
.
ICS (Slave/Receiver)
Data Byte Count = X
Beginning Byte N
Byte N + X - 1
ACK
ACK
ACK
0743G—01/26/10
(H)
(H)
(H)