HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 927

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

φ
V
MD2 to MD0
RES
SWE bit
CC
Notes: 1. When entering boot mode or making a transition from boot mode to another mode, mode switching must be
Period during which flash memory access is prohibited
(x: Wait time after setting 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)
2. When making a transition from boot mode to another mode, a mode programming setup time t
3. See section 26.1.6, Flash Memory Characteristics.
4. Wait time: 100 μs
carried out by means of RES input. The state of ports with multiplexed address functions and bus control output
pins (AS, RD, HWR, LWR) will change during this switchover interval (the interval during which the RES pin
input is low), and therefore these pins should not be used as output signals during this time.
ns is necessary with respect to RES clearance timing.
t
(Example: Boot Mode → User Mode ↔ User Program Mode)
OSC1
Mode
change
t
SWE
set
MDS
*
1
Wait time: x
Programming/erasing
possible
Figure 20.10 Mode Transition Timing
Boot
mode
3
*
4
SWE
cleared
Mode
change
t
RESW
t
MDS
*
*
1
Section 20 Flash Memory (0.35-μm F-ZTAT Version)
2
Wait time: x
Programming/erasing
possible
User
mode
User
program
mode
Rev.7.00 Mar. 18, 2009 page 859 of 1136
*
User
mode
4
Wait time: x
Programming/erasing
possible
User
program
mode
*
4
User mode
REJ09B0109-0700
MDS
Wait time: x
Programming/erasing
possible
User
program
mode
(min.) of 200
*
4