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| HD64F7144F50V Datasheet, PDF (733/932 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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19. Flash Memory (F-ZTAT Version)
CK
Vcc
FWP
MD3 to MD0
RES
SWE bit
Wait
Programmable/
time: tsswe
erasable
*4
Wait
Programmable/
time: tsswe erasable
*4
Wait
Programmable/
time: tsswe erasable
*4
Wait Programmable/
time: tsswe erasable
*4
tOSC1
tMDS*2
min 0μs
tMDS*2
tMDS*2
SWE set
tRESW
SWE clear
Mode
switch*1
Boot
Mode
Mode
User
switch*1 mode
User program mode
User
mode
User program mode
Prohibition time of accessing flash memory
(tsswe: Wait time after SWE set)*3
Reprogrammable time of flash memory
(Prohibition of program execution on flash memory and of reading data except verify)
Notes:
1. When transiting to boot mode or transiting to other modes from boot mode, mode switch by RES input is necessary.
2. See section 26.3.3, Control Signal Timing.
3. See section 26.5, Flash Memory Characteristics.
4. Wait time: 100 μs
Figure 19.13 Mode Transit Timing (Example: Boot Mode â User Mode â User
Program Mode)
Rev.4.00 Mar. 27, 2008 Page 687 of 882
REJ09B0108-0400
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