SH74593_15 Datasheet, PDF (23/38 Pages) Renesas Technology Corp – RENESAS MCU

SH74593
Appendix D.6
12.6.2 Conditions for FCU Command Acceptance
(2) ROM P/E mode
Appendix D
ROM read mode
FENTRYR = H'0001
or
FENTRYR = H'0002
When set from
the access miss state
FENTRYR = H'0000
Command miss
or
access miss
Command
locked
H'50
Status register
clear
ROM P/E mode (command input wait)
H'20
Erase
Normal
operation
H'D0
Verify erase
Erase
operation
H'E8
Program
H'77
Lock bit
program
H'80
Data width
Iterate 127 times
Program
data input
Input of 128 data
items complete
H'D0
Verify program
H'D0
Verify lock bit
program
Program
operation
Lock bit
program
operation
H'71
Lock bit read
Error
termination
H'D0
Verify lock bit
read
Lock bit read
operation
Legend:
: Command input
Figure 12.7 Command State Transitions in ROM Read Mode and P/E Mode
R01DS0186EJ0120 Rev.01.20
Sep 10, 2012
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