Datasheet

Section 20 Flash Memory (F-ZTAT Version)
Rev. 6.00 Mar. 18, 2010 Page 748 of 982
REJ09B0054-0600
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 sections 27.2.6, 27.3.6, 27.4.6, 27.5.6, and 27.6.6, Flash Memory Characteristics.
Mode programming setup time t
MDS
(min) = 200 ns.
Period during which flash memory access is prohibited
(t
sswe
: 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
SWE1bit
SWE1 set
SWE1 cleared
t
sswe
100 μs
Programming/
erasing
possible
Wait time: Wait time:
Figure 20.14 Power-On/Off Timing (Boot Mode)