AK2574VB AKM [Asahi Kasei Microsystems], AK2574VB Datasheet - Page 23

• Manufacturer Part Number: AK2574VB
• Description: 156M Laser Diode Driver + APC for Burst Mode
• Manufacturer: AKM [Asahi Kasei Microsystems]

by one. The roll over address is changed WP setting. Refer to Table 5-2 in detail.
perform “current address read” (see 5.2.2).
AK2574 continues to output data for each ACK received.
The internal address counter maintains the last address accessed during the last read or write operation, incremented
A random read requires a “dummy” byte write sequence to specified “Address”. After receive the ACK from AK2574,
Sequential read can be initiated as ether “Current Address Read” or “Random Read”. After issuing either of them, the
5.2 Read/Write Operation
5.2.1
5.2.2
AK2574 is capable of 16-byte page write.
5.2.3
5.2.4
5.2.5
<MS0266-E-00>
SDA
SDA
SDA
SDA
SDA
S
T
A
R
T
S
T
A
R
T
1 0 1 0
. . . .
Byte Write
Page Write
Current Address Read
S
T
A
R
T
Random Read
Sequential Read
Address-1
1 0 1 0
Device
A
R
S
T
T
Address-1
1 0 1 0
Device
Address-1
1 0 1 0
Device
Address-1
Address-2
Device
Device
Address-2
Device
Address-2
Device
R/
W
0
Address-2
Device
Dummy Write
0
A
C
K
R/
W
Address-2
1
Device
R/
W
0
0
A
C
K
(MSB First)
R/
W
0
1
A
C
K
Address
*1
0
A
C
K
R/
W
(MSB First)
0
Data-1
0
(MSB First)
A
C
K
Address
0
K
A
C
(MSB First)
Data
Data (Address)
0
K
(MSB First)
A
C
Address
K
0
A
C
T
A
R
T
S
1
N
O
Data-2
A
C
K
0
A
C
K
1 0 1 0
-23-
Address-1
O
S
T
P
Device
Data (Address + 1)
0
K
A
C
*1: Don't care when WP="H"
Address-2
0
A
C
K
Device
. . . .
0
K
A
C
R/
W
1
(MSB First)
. . . .
0
A
C
K
Data
0
A
C
K
(MSB First)
Data
0
K
A
C
0
A
C
K
Data (Address + n)
Data-n
O
S
T
P
1
N
O
K
A
C
2003/12
T
O
P
S
N
1
O
A
C
K
0
A
C
K
O
S
T
P
O
S
T
P