isl22323 Intersil Corporation, isl22323 Datasheet - Page 14

• Manufacturer Part Number: isl22323
• Description: Dual Digitally Controlled Potentiometer Xdcp? , Low Noise, Low Power, I2c? Bus, 256 Taps
• Manufacturer: Intersil Corporation

SIGNAL AT SDA
FROM THE
SIGNALS
MASTER
SIGNALS FROM
SDA OUTPUT FROM
SDA OUTPUT FROM
THE SLAVE
TRANSMITTER
S
A
R
T
T
SCL FROM
RECEIVER
SDA
SCL
MASTER
1
IDENTIFICATION
0
BYTE WITH
SIGNALS FROM
SIGNAL AT SDA
SIGNALS FROM
1
R/W = 0
THE MASTER
0
THE SLAVE
14
0
A1
FIGURE 16. VALID DATA CHANGES, START AND STOP CONDITIONS
START
A0
START
0
FIGURE 17. ACKNOWLEDGE RESPONSE FROM RECEIVER
A
C
K
0 0 0
HIGH IMPEDANCE
ADDRESS
S
A
R
T
T
BYTE
0
FIGURE 18. BYTE WRITE SEQUENCE
1
IDENTIFICATION
0
1
FIGURE 19. READ SEQUENCE
1
BYTE
0
STABLE
0
DATA
A1
A
C
K
ISL22323
A0
A
R
S
T
T
0
WRITE
1 0 1 0
IDENTIFICATION
A
C
K
BYTE WITH
CHANGE
R/W = 1
DATA
0 0 0 0
ADDRESS
0
BYTE
A1
0
A0
STABLE
DATA
1
A
C
K
A
C
K
8
FIRST READ
DATA BYTE
DATA
BYTE
A
C
K
HIGH IMPEDANCE
STOP
ACK
9
A
C
K
A
C
K
S
T
O
P
LAST READ
DATA BYTE
May 31, 2007
A
C
K
FN6422.0
S
T
O
P