ISL51002 Intersil Corporation, ISL51002 Datasheet - Page 31

• Manufacturer Part Number: ISL51002
• Description: 10-Bit Video Analog Front End
• Manufacturer: Intersil Corporation

A7
1
D7
1
FROM THE
FROM THE
SIGNALS
SDA BUS
SIGNALS
ISL51002
HOST
A6
D6
0
0
ISL51002 SERIAL BUS ADDRESS
S
T
A
R
T
A5
D5
0
ISL51002 SERIAL BUS
0
1 0 0 1 1 0 A 0
SERIAL BUS
ADDRESS
(REPEAT IF DESIRED)
START COMMAND
31
START COMMAND
STOP COMMAND
A4
D4
1
1
A
C
K
A3
a a a a a a a a
D3
1
1
REGISTER
ADDRESS
FIGURE 7. CONFIGURATION REGISTER READ
0
A2
0
D2
A
C
K
(PIN 67)
(PIN 67)
R
E
S
T
A
R
T
A1
1 0 0 1 1 0 A 1
D1
SERIAL BUS
A
A
ADDRESS
ISL51002
R/W
A0
R/W
D0
0
1
A
C
K
d d d d d d d d
ISL51002 Serial Bus Address Write
This is the 7-bit address of the ISL51002 on the 2-wire bus. The
address is 0x98 if pin 67 is low, 0x9A if pin 67 is high. R/W = 0,
indicating next transaction will be a write.
Signals the beginning of serial I/O
ISL51002 Register Address Write
This sets the initial address of the ISL51002’s configuration
register for subsequent reading.
Ends the previous transaction and starts a new one
ISL51002 Serial Bus Address Write
This is the 7-bit address of the ISL51002 on the 2-wire bus. The
address is 0x98 if pin 67 is low, 0x9A if pin 67 is high. R/W = 1,
indicating next transaction(s) will be a read.
ISL51002 Register Data Read(s)
This is the data read from the ISL51002’s configuration register.
Note: The ISL51002’s Configuration Register’s address pointer
auto increments after each data read: repeat this step to read
multiple sequential bytes of data from the Configuration Register.
Signals the ending of serial I/O
READ*
DATA
A
C
K
S
O
P
T
* The data read step may be repeated to read
from the ISL51002’s Configuration Register
sequentially, beginning at the Register
Address written in the two steps previous.
December 22, 2006