Register map and OTP memory
A3M39SL039 Airfast Power Amplifier Module with Autobias Control, Rev. 0, March 2022
Data Sheet: Technical Data
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Table 10. Register map
Address
(in Decimal)
Register
Attribute
Register
Name
Register Definition
Default
Value
bit7
bit6
bit5
bit4 bit3 bit2 bit1 bit0
0
RW
System_Reg
N/A
Soft
Reset
Refresh
OTP
N/A
Chip Version [3:0] (Read
only)
8'b0000_0001
1
OTP
COPY
(RW)
A_Sense_DAC
Reserved
Group A Sense DAC
OTP value
2
OTP
COPY
(RW)
A_VGS1_DAC
Group A V
GS1
DAC
OTP value
3
OTP
COPY
(RW)
A_VGS2_DAC
Group A V
GS2
DAC
OTP value
4
OTP
COPY
(RW)
B_Sense_DAC
Reserved
Group B Sense DAC
OTP value
5
OTP
COPY
(RW)
B_VGS3_DAC
Group B V
GS3
DAC
OTP value
6
OTP
COPY
(RW)
B_VGS4_DAC
Group B V
GS4
DAC
OTP value
7–14
—
—
Reserved
—
15
RO
Temp_ADC
Temperature Sensor [7:0]
—
16
—
—
Reserved
—
17
Virtual W
only
EM_Passcode
Engineering Mode (EM) passcode 8'hE3
—
Read Only register (RO)
Read Write register (RW)
Read Write register with OTP overwrite at Startup (RW)
Reserved non-accessible register
Write Only register