Datasheet

Section 17 Flash Memory (F-ZTAT Version)
Rev.7.00 Dec. 24, 2008 Page 589 of 698
REJ09B0074-0700
1.
2.
3.
Except when switching modes, the level of the mode pins (MD2 to MD0) must be fixed until
power-off by pulling the pins up or down.
See section 22.7, Flash Memory Characteristics.
Mode programming setup time t
MDS
(min) = 200 ns.
Period during which flash memory access is prohibited
(x: Wait time after setting SWE1 bit)*
2
Period during which flash memory can be programmed
(Execution of program in flash memory prohibited, and data reads other than verify operations
prohibited)
Notes:
V
CC
FWE
φ
t
OSC1
min 0 μs
min 0 μ s
t
MDS
*
3
t
MDS
*
3
MD2 to MD0*
1
RES
SWE1 bit
SWE1 set
SWE1 cleared
x
θ
Programming/
erasing
possible
Wait time: Wait time:
Figure 17.16 Power-On/Off Timing (Boot Mode)