+/+…when timing is critical
C9810
Low EMI Clock Generator for Intel 810 Chipset for Mobile Applications
Advanced Information
IMI Confidential
Transmit
1
ACK
ACK
ACK
ACK
ACK
Receive
COMMAND BYTE
(Don't Care)
BYTE COUNT
(Don't Care)
BYTE 0
(Valid)
BYTE N
(Valid)
1
1
0
1
0
0
0
SDATA
MSB
LSB
8
8
8
8
SCLK
START CONDITION
STOP CONDITION
Fig.7a (WRITE)
Transmit
ACK BYTE COUNT
BYTE 0
(Valid)
BYTE1
(Valid)
BYTE N
Receiv
ACK
ACK
ACK
ACK
1
1
0
1
0
1
0
1
(Valid)
(Valid)
SDATA
MSB
LSB
8
8
8
8
SCLK
START CONDITION
STOP CONDITION
Fig.7b (READ)
I2C Communications Waveforms
Test and Measurement Condition
Output under Test
Probe
Load Cap
3.3V signals
2.5V signals
tDC
tDC
-
-
-
-
3.3V
2.5V
2.4V
1.5V
2.0V
1.25V
0.4V
0.4V
0V
0V
Tr
Tf
Tr
Tf
Fig8A
Fig.8B
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035, USA TEL: 408-263-6300, FAX 408-263-6571
Rev 0.4
8/31/1999
Page 8 of 15
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