R8C28_08 Datasheet, PDF (371/473 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MCU R8C FAMILY / R8C/2x SERIES

R8C/28 Group, R8C/29 Group
Figure 19.8 shows the Timing of Suspend Operation.
19. Flash Memory
FMR00 bit in
1
FMR0 register
0
FMR46 bit in
1
FMR4 register
0
FMR44 bit in
1
FMR4 register
0
FMR43 bit in
1
FMR4 register
0
Erasure
starts
Erasure
suspends
Programming Programming Programming Programming Erasure
starts
suspends restarts
ends
restarts
Erasure
ends
During erasure
During programming
Remains 0 during suspend
During programming
During erasure
Remains 1 during suspend
Check that the
FMR43 bit is set to 1
(during erase
execution), and that
the erase-operation
has not ended.
Check that the
FMR44 bit is set to 1
(during program
execution), and that
the program has not
ended.
Check the status,
and that the
programming ends
normally.
Check the status,
and that the
erasure ends
normally.
The above figure shows an example of the use of program-suspend during programming following erase-suspend.
NOTE:
1. If program-suspend is entered during erase-suspend, always restart programming.
Figure 19.8 Timing of Suspend Operation
Rev.2.10 Sep 26, 2008 Page 352 of 441
REJ09B0279-0210