Mitsubishi Electric Q26UD(E)HCPU - Page 549

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APPENDICES
A
Appendix 3 List of Special Register Areas
SD676
Backup data
restoration
information
Restore time
(Year and
month)
This register stores the year (last two digits) and the month
when data were restored in 2-digit BCD.
S (Initial) New
QnU
LCPU
SD677
Restore time
(Day and
time)
This register stores the day and the hour when data were
restored in 2-digit BCD.
SD678
Restore time
(Minute and
second)
This register stores the minute and the second when data
were restored in 2-digit BCD.
SD679
Restore time
(Year and day
of week)
This register stores the year (first two digits) and the day of
the week when data were restored in BCD.
SD681
Program
memory
write
(transfer)
status
Write
(transfer)
status display
(percentage)
This register stores the progress of writing (transfer) to the
program memory (flash ROM) in percentage (0 to 100%).
When a write (transfer) command is given, "0" is stored in this
register.
S (At write) New
QnU
LCPU
SD682
Program
memory
write count
index
Write count
index up to
present
This register stores the index value of write count of the
program memory (flash ROM)
*1
up to the present in 32-bit
binary. When the index value exceeds 100 thousand times,
"FLASH ROM ERROR" (error code: 1610) occurs. (The index
value will be counted even after it exceeds 100 thousand.)
*1 The write count does not equal to the index value.
(Since the maximum write count of the flash ROM has
been increased by the system, 1 is added about every
two writing operations.)
S (At write) New
QnU
LCPU
SD683
SD686
Standard
ROM write
(transfer)
status
Write
(transfer)
status display
(percentage)
This register stores the progress of writing (transfer) to the
standard ROM (flash ROM) in percentage (0 to 100%). When
a write (transfer) command is given, "0" is stored in this
register.
S (At write) New
QnU
LCPU
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
D9
Corresponding
CPU
b15
b12 b11
b8 b7
b4
b3 b0
to to to to
Example:
July, 1993
9307
H
Year
Month
b15
b12 b11
b8 b7
b4
b3 b0
to to to to
Day
Hour
Example:
31st, 10 a.m.
3110
H
b15
b12 b11
b8 b7
b4
b3 b0
to to to to
Example:
35 min., 48 sec.
3548
H
SecondSecondMinute
b15 b12 b11 b8 b7 b4 b3 b0
0
1
2
3
4
5
6
to to to to
Example:
1993, Friday
1905
H
Higher digits of year (0 to 99)
Sunday
Saturday
Friday
Thursday
Wednesday
Tuesday
Monday
Day of the week