r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 1085

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Figure 21.5 Flowchart of Block Erase Command Processing
Notes:
1.
2.
3.
Write the command code and data to even addresses.
See figure 21.6.
If an erase error occurs, repeat a sequence of the clear
status register command -> block erase command at least
three times until no erase error occurs.
Write command code "H'xx20h"*
Write H'xxD0 to the highest
address of the block.
Full status check *
End of block erase
FMRDY = 1?
Start
YES
2
*
3
Rev. 1.00 Sep. 19, 2008 Page 1057 of 1270
NO
1
Section 21 Flash Memory
REJ09B0466-0100