AK2574VB AKM [Asahi Kasei Microsystems], AK2574VB Datasheet - Page 22

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

5. I
5.1 Memory Map
Table 5-1 shows the EEPROM / Register address map. Access to memory (EEPROM / registers) is done via the I
I/F format.
WP (Write Protect) may limit the access of memory as shown in Table 5-2.
Table 5-1 Memory map
Table 5-2 Memory access limitation with WP
<MS0266-E-00>
Note 1: During EEPROM Write operation, no ACK is generated.
Device Address
Item
Device Address
ACK (Note 1)
EEPROM / Register
Access
Operating mode
Page Write
Sequential Read
Registers Access
2
C
TM
A0h
A0h
A2h
A4h
A6h
A6h
A8h
A8h
A8h
I/F
Device Address-1
1010
1010
1010
1010
1010
1010
1010
1010
1010
WP = “L”
1010xxx
when receive device address
Full access
Full
16 byte (without registers)
from 00000000000 to 01111111111
Random access only
Device Address-2
000
000
001
010
011
011
100
100
100
-22-
00010011
00000000 to
01111111
10000000 to
11111111
00000000 to
11111111
00000000 to
11111111
00000000 to
01111111
10000000 to
11111111
00000000 to
00010011 to
11111110
11111111
Address
WP = “H”
1010000
when receive device address
User area only (read only)
Self running mode only
from 00000000 to 01111111
User Area
(EEPROM, 1kbit)
No memory
No memory
Adjustment data
(EEPROM, 3kbit)
No memory
Registers
No memory
AK2574 Operation mode
change
-
-
Data
2003/12
2
C
TM