PD78F0701Y_15 Datasheet, PDF (24/54 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78F0701Y
Figure 6-7. Self-Programming Flowchart
(1)
Disable interrupts.
(2)
Self-writing mode
(FLPMC = 09H)
(3)
Select register bank 3.
(4) ^{Specify entry RAM address.}
(5)
VPP: ON
No
(6)
VPP = 1?
Yes
(7) ^{Initialize flash subroutine.}
(8)
Set parameter.
Pre-write
Erase
Yes
Error?
No
(9)
Write data.
Error?
Yes
No
Verify.
Error?
Yes
No
(10)
VPP: OFF
(11)
Normal operation mode
(FLPMC = 08H)
Less than n^Note
Number of errors?
nth^Note
Flash memory is abnormal.
Note This differs depending on the user program.
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Preliminary Product Information U13563EJ2V0PM00