AK7401 Datasheet, PDF (20/29 Pages) Asahi Kasei Microsystems – Rotary Position Sensor IC

[AK7401]
● EEPROM Address Map
Permission
Address EEPROM Name
Normal
User
Content
Mode
Mode
0x00
MEM_0[11:0]
N/A AKM reserved
0x01
MEM_1[11:0]
N/A AKM reserved
0x02
MEM_2[11:0]
N/A AKM reserved
0x03
E_MLK[11:0]
R/W Memory Lock Key
0x04
E_ID[11:0]
R/W Free EEPROM for User
0x05
MEM_5[11:3]
E_RD[2:0]
N/A AKM reserved
R/W Rotation Direction Configuration
0x06
E_ZP[11:0]
R/W Zero Degree Point Configuration
0x07
E_ABNRM[11:0]
R/W Self-diagnostic Configuration
0x08
0x09
MEM_8[11:8]
E_MFDRH[7:0]
MEM_9[11:8]
E_MFDRL[7:0]
N/A
N/A
R/W
N/A
R/W
AKM reserved
Upper Limit of Magnetic Flux Density
AKM reserved
Lower Limit of Magnetic Flux Density
MEM_A[11:9]
N/A AKM reserved
0x0A
E_PWMPL[8:6]
R/W PWM Polarity Configuration
E_PWMF[5:0]
R/W PWM Frequency Configuration
0x0B
MEM_B[11:3]
E_PWMOMD[2:0]
N/A AKM reserved
R/W Output Type of the OUT Pin Configuration
0x0C
MEM_C[11:0]
N/A AKM reserved
MEM_D[11:9]
N/A AKM reserved
0x0D
E_IT[8:3]
R/W Angle Data Averaging Configuration
MEM_D[2:0]
N/A AKM reserved
0x0E
to
-
N/A
R
AKM reserved
0x3F
(N/A: not available, R: read only, W: write only, R/W: full access)
● EEPROM Description
1) E_MLK (Addr. 0x03)
DATA[11:0]
11
10
9
8
7
6
5
4
3
2
1
0
E_MLK[11:0]
These EEPROM contain the 12-bit memory lock key data. To prevent EEPROM from rewriting incorrectly,
the memory lock key data can be stored in E_MLK via WriteEEPROM operation code in User Mode.
Memory
Condition
Unlocked
Locked
E_MLK[11:0]
Except for 0x5A5
0x5A5
Default
●(0x000)
014002685-E-01
- 20 -
2015/07