HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 731

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

CK
Vcc
FWP
MD3 to MD0
RES
SWE bit
Figure 19.13 Mode Transit Timing (Example: Boot Mode → User Mode ⇔ User
Notes:
t
OSC1
Prohibition time of accessing flash memory
(t
Reprogrammable time of flash memory
(Prohibition of program execution on flash memory and of reading data except verify)
SWE set
sswe
Mode
switch *
t
1.
2.
3.
4.
MDS
: Wait time after SWE set) *
t
MDS
Wait
time: t
*
When transiting to boot mode or transiting to other modes from boot mode, mode switch by RES input is necessary.
See section 26.3.3, Control Signal Timing.
See section 26.5, Flash Memory Characteristics.
Wait time: 100 μs
2
1
*
2
sswe
Programmable/
erasable
Boot
Mode
3
*
min 0μs
4
Mode
switch *
SWE clear
t
RESW
t
MDS
1
Wait
time: t
*
2
User
mode
Program Mode)
sswe
Programmable/
erasable
Rev.4.00 Mar. 27, 2008 Page 687 of 882
User program mode
*
4
19. Flash Memory (F-ZTAT Version)
Wait
time: t
sswe
Programmable/
erasable
*
4
REJ09B0108-0400
User
mode
Wait
time: t
sswe
User program mode
Programmable/
erasable
*
4