PIC17CXX Datasheet, PDF (6/16 Pages) Microchip Technology – EPROM Memory Programming Specification

PIC17CXX
FIGURE 3-3: RECOMMENDED PROGRAMMING ALGORITHM FOR CONFIGURATION WORDS
Start
Load new address
Pulse-count = 0
Set V_DD = V_DDmin
Verify blank
Pass
Blank
No
check?
Issue “blank check fail”
error message
Yes
Load new data
Set V_DD = V_DDmin
Programming error:
Issue error message
“Fail verify @ V_DDmin/max”
Set V_DD = V_DDP
Program using 100 µs
pulse increment
pulse-count
Yes
Pass? ^No
Yes _Pulse
count
<100
No
Verify location for
correct data
Set V_DD = V_DDmax
Verify location(s)
SSeeVtteVVr_Di^D_fDy^D=lo=cVVa_DDtDio^Dmnminin
Yes
Pass?
No
Location fails
programming, issue error
message “Unable to
program location”
DS30139I-page 6
© 1996 Microchip Technology Inc.