SH7047 Datasheet, PDF (591/764 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTMRISC engine Family/SH7000 Series

*¹
User mode
MD1 = 1,
FWP = 1
RES = 0
Reset state
(on-chip ROM
enabled)
MD1 = 1,
FWP = 0 ^{RES = 0}
*²
FWP = 0 ^{FWP = 1}
MD1 = 0, RES = 0
FWP = 0
User
*¹
program mode
RES = 0
PROM
Programmer
mode
On-board programming mode
Boot mode
Notes: Only make a transition between user mode and user program mode when the CPU is not accessing
the flash memory.
*1 RAM emulation possible
*2 This LSI transits to programmer mode by using the dedicated PROM programmer.
Figure 19.2 Flash Memory State Transitions
Table 19.1 Differences between Boot Mode and User Program Mode
Boot Mode
User Program Mode
Total erase
Yes
Yes
Block erase
No
Yes
Programming control program*
(2)
(1) (2) (3)
(1) Erase/erase-verify
(2) Program/program-verify
(3) Emulation
Note: * To be provided by the user, in accordance with the recommended algorithm.
Rev. 2.00, 09/04, page 551 of 720