ISL23315_15 Datasheet, PDF (16/20 Pages) Intersil Corporation – Single, Low Voltage Digitally Controlled Potentiometer(XDCP™)

ISL23315
SCL FROM
MASTER
1
SDA OUTPUT FROM
TRANSMITTER
8
9
HIGH IMPEDANCE
SDA OUTPUT FROM
RECEIVER
HIGH IMPEDANCE
START
FIGURE 28. ACKNOWLEDGE RESPONSE FROM RECEIVER
ACK
SIGNALS FROM
THE MASTER
WRITE
S
T
A
R
T
IDENTIFICATION
BYTE
ADDRESS
BYTE
S
DATA
T
BYTE
O
P
SIGNAL AT SDA
1 0 1 0 0 A1 A0 0 0 0 0
SIGNALS FROM
THE SLAVE
A
A
A
C
C
C
K
K
K
SIGNALS
FROM THE
MASTER
S
T
A IDENTIFICATION
R
BYTE WITH
T
R/W = 0
FIGURE 29. BYTE WRITE SEQUENCE
ADDRESS
BYTE
S
T
A IDENTIFICATION
R BYTE WITH
T
R/W = 1
READ
A
A
C
C
K
K
S
AT
CO
KP
SIGNAL AT SDA 1 0 1 0 0A1 A0 0
000
A
SIGNALS FROM
C
THE SLAVE
K
1 0 1 0 0 A1 A0 1
A
A
C
C _{FIRST READ}
K
K _{DATA BYTE}
FIGURE 30. READ SEQUENCE
LAST READ
DATA BYTE
16
FN7778.2
August 12, 2015