NCV78663 Datasheet, PDF (27/37 Pages) ON Semiconductor – Power Ballast and Dual LED Driver

Name
7
OTP_Start
0
Address:
Bit
7
6...5
4
3...0
Name
7
0
Address:
Bit
7...0
NCV78663
Control Register 9 /CR9/ : OTP Control
6
5
4
3
2
1
0
−
OTP_Cmd[1:0]
OTP_Addr[3:0]
Reset Value:
x
0
0
0
0
0
0
Reset Source: nReset/TEST
09h
Access:
R/W* (in Test mode)
Name
OTP_Start
OTP_Cmd[1:0]
Reserved
OTP_Addr[3:0]
Description
To write in this registers TEST pin needs to be set to ’1’.
Set of OTP_Start bit executes the selected command − written in OTPCtrl [1:0]
bits.
To write in this registers TEST pin needs to be set to ’1’.
“00” − Point to OTP cell (read OTP without SPI registers refresh)
“01” − Read OTP. Refresh OTP/SPI and provides for reading from OTP_DATA
[7:0]
“10” − Load OTP. Take data from OTP_DATA [7:0] and shift them in the OTP
chain at the OTP_Addr [3:0] address, for emulation.
“11” − Zap OTP. Take data from OTP_DATA [7:0] and zaps! the OTP, one bit at
a time at OTP_Addr [3:0] address.
Reserved bit. To be kept to zero in the application.
Pre−defined OTP address to be accessed by the OTP_Cmd [1:0] command.
Control Register 10 /CR10/ : OTP Data
6
5
4
3
2
1
0
OTP_Data[7:0]
Reset Value:
0
0
0
0
0
0
0
Reset Source: nReset
0Ah
Access:
R/W
Name
OTP_Data [7:0]
Description
Data used in case of OTP Load/Zap operation.
In case the register is accessed for reading, data is taken directly from
OTP_Addr [3:0] address.
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