
18
FN6316.1
July 15, 2010
FIGURE 14. VALID DATA CHANGES, START AND STOP CONDITIONS
FIGURE 15. ACKNOWLEDGE RESPONSE FROM RECEIVER
FIGURE 16. BYTE WRITE SEQUENCE
SDA
SCL
START
DATA
STOP
STABLE
CHANGE
DATA
STABLE
SDA OUTPUT FROM
TRANSMITTER
SDA OUTPUT FROM
RECEIVER
8
1
9
START
ACK
SCL FROM
MASTER
HIGH IMPEDANCE
S
T
A
R
T
S
T
O
P
IDENTIFICATION
BYTE
DATA
BYTE
A
C
K
SIGNALS FROM
THE MASTER
SIGNALS FROM
THE ISL1221
A
C
K
10
0
11
A
C
K
WRITE
SIGNAL AT SDA
00 00
11 1
ADDRESS
BYTE
ISL1221