SH7040 Datasheet, PDF (714/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

< Preliminary >
Start
Set EPROM writer to
write/verify mode
(V_CC = 6.0 V ± 0.25 V,
V_PP = 12.5 V ± 0.3 V)
Address = 0
n=0
No
Yes
n = 25?
n+1→n
Data write
(t_PW = 0.2 ms ± 5%)
No
Is verify
result OK?
Yes
Data write
(t_OPW = 0.2n ms)
Address + 1 →
address
Final
No
address?
Yes
Set EPROM
writer to read mode
(V_CC = 5.0 V ± 0.25 V,
V_PP = V_CC)
No
No good
V_CC: Power supply
V_PP: PROM program power supply
t_PW: Initial programming pulse width
t_OPW: Over-programming pulse width
All address
read results
OK?
Yes
End
Figure 21.6 High-Speed, High-Reliability Programming Basic Flow
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