h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 733

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Figure 20.13 shows the flash memory state transition diagram.
Legend:
RD: Memory read possible
VF: Verify-read possible
PR: Programming possible
ER: Erasing possible
RD VF PR ER FLER = 0
Program mode
occurrence
Erase mode
RD VF PR ER FLER = 1
Error protection mode
Error
Figure 20.13 Flash Memory State Transitions
Error occurrence
(software standby)
RD: Memory read not possible
VF: Verify-read not possible
PR: Programming not possible
ER: Erasing not possible
RES = 0 or HSTBY = 0
Software
standby mode
Software standby
mode release
RES = 0 or
HSTBY = 0
Rev. 5.00 Sep 22, 2005 page 707 of 1136
HSTBY = 0
RES = 0 or
RD VF PR ER FLER = 1
Error protection mode
FLMCR1, FLMCR2, (except bit FLER)
EBR1, EBR2 initialization state
(software standby)
RD VF PR ER FLER = 0
(hardware protection)
Reset or standby
FLMCR1, FLMCR2,
EBR1, EBR2
initialization state
REJ09B0257-0500
Section 20 ROM