h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 569

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Figure 19.3 shows the operation flow for boot mode and figure 19.4 shows that for user program
mode.
Table 19.1 Differences between Boot Mode and User Program Mode
Note:
Entire erase
Block erase
Programming control program*
* To be provided by the user, in accordance with the recommended algorithm.
Notes: Only make a transition between user mode and user program mode when the CPU is
with on-chip ROM
FWE = 1
User mode
enabled
not accessing the flash memory.
1. RAM emulation possible
2. MD0 = 0, MD1 = 0, MD2 = 0, FWE = 1, P14 = 0, P16 = 0, PF0 = 1
On-board programming mode
program mode
FWE = 0
Figure 19.2 Flash Memory State Transitions
User
MD1 = 1,
MD2 = 1,
FWE = 0
MD1 = 1,
MD2 = 1,
FWE = 1
*
RES = 0
Boot Mode
Yes
No
Program/program-verify
1
*
1
RES = 0
MD1 = 0
MD2 = 1,
FWE = 1
Reset state
Boot mode
RES = 0
Rev. 2.00 Dec. 05, 2005 Page 531 of 724
*
2
User Program Mode
Yes
Yes
Program/program-verify/erase/
erase-verify/emulation
RES = 0
Programmer
mode
REJ09B0200-0200
Section 19 ROM