h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 964

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 21C ROM (H8S/2635 Group)
Figure 21C-14 shows the flash memory state transition diagram.
Rev. 6.00 Feb 22, 2005 page 904 of 1484
REJ09B0103-0600
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 21C-14 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
HSTBY = 0
RES = 0 or
RD VF PR ER FLER = 1
FLMCR1, FLMCR2, (except bit FLER)
EBR1, EBR2 initialization state
Error protection mode
(software standby)
RD VF PR ER FLER = 0
(hardware protection)
Reset or standby
FLMCR1, FLMCR2,
EBR1, EBR2
initialization state