Hitachi H8S/2646 Hardware Manual page 713

Normal mode
*1
FWE = 1 FWE = 0
On-board
programming mode
Software programming
disable state
SWE = 0
Notes: In order to perform a normal read of flash memory, SWE must be cleared to 0. Also note that verify-reads
can be performed during the programming/erasing process.
: Normal mode
*1
*2 Do not make a state transition by setting or clearing multiple bits simultaneously.
*3 After a transition from erase mode to the erase setup state, do not enter erase mode without passing
through the software programming enable state.
*4 After a transition from program mode to the program setup state, do not enter program mode without
passing through the software programming enable state.
Figure 20-10 FLMCR1 Bit Settings and State Transitions
ESU = 1
*2
SWE = 1
Software
programming
enable
state
PV = 0
: On-board programming mode
*3
Erase setup
state
ESU = 0
Erase-verify
EV = 1
mode
EV = 0
PSU = 1
*4
Program
PSU = 0
setup state
PV = 1
Program-verify
mode
E = 1
Erase mode
E = 0
P = 1
Program mode
P = 0
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