Figure 18.16 Power-On/Off Timing (Boot Mode) - Hitachi H8/3062 Hardware Manual

φ
V
CC
FWE
*1
MD to MD
2 0
RES
SWE bit
Period during which flash memory access is prohibited
(x: Wait time after setting SWE bit, y: Wait time after clearing SWE bit)
Period during which flash memory can be programmed
(Execution of program in flash memory prohibited, and data reads other than verify operations
prohibited)
Notes: *1 Except when switching modes, the level of the mode pins (MD
by pulling the pins up or down.
*2 See 22.3.6 Flash Memory Characteristics.
Wait time:
t
OSC1
t
MDS
t
MDS
SWE set

Figure 18.16 Power-On/Off Timing (Boot Mode)

Program-
ming/
erasing
Wait time:
possible
x y
Min 0 µs
SWE cleared
*2
to MD
2
Min 0 µs
) must be fixed until power-off
0
569