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| SH7047 Datasheet, PDF (616/764 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTMRISC engine Family/SH7000 Series | |||
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*4
*4
*4
*4
CK
tosc1
Vcc
FWP
tMDS*2
min 0 µs
tMDS*2
MD3 to MD0
RES
SWE bit
tMDS*2
SWE
set
tRESW
SWE
cleared
Mode
change*1
Boot
mode
Mode User
change*1 mode
Period during which flash memory access is prohibited
(tsswe: Wait time after setting SWE bit)*3
User program mode
User
mode
Period during which flash memory can be programmed
(Execution of program in flash memory prohibited, and data reads other than verify operations prohibited)
User
program
mode
Notes: 1. When entering boot mode or making a transition from boot mode to another mode, mode switching
must be carried out by means of RES input.
2. See Section 25.3.3, Control Signal Timing in Electrical Characteristics.
3. See Section 25.5, Flash Memory Characteristics in Electrical Characteristics.
4. Wait time: 100 µs.
Figure 19.13 Mode Transition Timing
(Example: Boot Mode â User Mode âUser Program Mode)
Rev. 2.00, 09/04, page 576 of 720
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