C515C_9711 Datasheet, PDF (238/268 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

OTP Memory Operation
C515C-8E
Figure 10-5 shows a waveform example of the program/read mode access for several OTP
memory bytes. In this example OTP memory locations 3FDH to 400H are programmed. Thereafter,
OTP memory locations 400H and 3FDH are read.
PMSEL1, 0
PALE
Port 2
Port 0
PROG
PRD
1.1
3FD
03 FD
3FE
3FF
400
FE
FF 04 00
400
3FD
00 03 FD
Data1 Data2 Data3
Data4
Data4
Data1
MCT03655
Figure 10-5
Typical OTP Memory Programming/Verify Access Waveform
Semiconductor Group
10-8
1997-11-01