Renesas R8C/20 User Manual

R8C/20 Group, R8C/21 Group 19. Flash Memory
Rev.2.00 Aug 27, 2008 Page 389 of 458
REJ09B0250-0200
Figure 19.8 shows the Timing of Suspend Operation.
Figure 19.8 Timing of Suspend Operation
Erase
starts
Erase
suspends
FMR00 bit in
FMR0 register
Program
starts
Program
suspends
Program
restarts
Program
ends
During erase
During program During program
Erase
restarts
Erase
ends
During erase
FMR46 bit in
FMR4 register
FMR44 bit in
FMR4 register
FMR43 bit in
FMR4 register
1
0
1
0
1
0
1
0
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
program ends
normally.
Check the status,
and that the erase
operation ends
normally.
Remains 0 during suspend
Remains 1 during suspend
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.

Renesas R8C/20 Specifications

General

Brand	Renesas
Model	R8C/20
Category	Control Unit
Language	English