ISL25700 Datasheet, PDF (14/18 Pages) Intersil Corporation – Programmable Temperature Controlled MOSFET Driver

ISL25700
SCL
SDA
START
DATA
DATA DATA
STABLE CHANGE STABLE
STOP
FIGURE 13. VALID DATA CHANGES, START, AND STOP CONDITIONS
SCL FROM
MASTER
1
SDA OUTPUT FROM
TRANSMITTER
8
9
HIGH IMPEDANCE
SDA OUTPUT
FROM RECEIVER
HIGH IMPEDANCE
START
ACK
FIGURE 14. ACKNOWLEDGE RESPONSE FROM RECEIVER
SIGNALS
FROM THE
MASTER
WRITE
S
T
A
R
IDENTIFICATION
BYTE
T
ADDRESS
BYTE
S
DATA
T
BYTE
O
P
SIGNAL AT
SDA
01 01 0 000 00 0 0
SIGNALS
FROM THE
ISL25700
A
A
A
C
C
C
K
K
K
FIGURE 15. BYTE WRITE SEQUENCE
S
S
READ
SIGNALS T
T
FROM THE A IDENTIFICATION
A IDENTIFICATIO
A
MASTER R
T
BYTE WITH
R/W = 0
ADDRESS
BYTE
R _{N BYTE WITH}
T
R/W = 1
C
K
SIGNAL AT
SDA
01010000
0000
A
SIGNALS
C
FROM THE
K
SLAVE
01010001
A
A
C
C _{FIRST READ}
K
K _{DATA BYTE}
FIGURE 16. READ SEQUENCE
A
C
K
S
T
O
P
LAST READ
DATA BYTE
14
FN6885.0
September 3, 2010