Instruction related
The special registers related to instruction execution are shown below.
R: Read only, R/W: Read/Write
No.
Name
SD757
Current interrupt priority
SD758
Interrupt disabling for each priority setting value
Latch area
The special registers for latch area are shown below.
R: Read only, R/W: Read/Write
No.
Name
SD953
Backup error cause
SD954
Restoration target data setting
SD955
Restoration function setting
SD956
Restoration target date folder setting
SD957
SD958
Restoration target number folder setting
SD959
Restoration error cause
Description
This register stores the interrupt priority of the interrupt program
being executed.
1 to 3: The interrupt priority of interrupt program executed.
0: The interrupt is not executed. (default value)
This register stores the disable interrupt priority according to the
disable interrupt instruction (DI), disable interrupt after the setting
priority instruction (DI), and enable interrupt instruction (EI).
1: Disable interrupt priority 1 or less. (Disable interrupt of all
priority) (default value)
2: Disable interrupt priority 2 or 3.
3: Disable interrupt priority 3.
0: No priority. (Enable interrupt of all priority)
Description
The cause of the error that occurred during the data backup is
stored.
• 0: No error
• Other than 0: Error codes
"0" is set at the start of the data backup.
Set the target data to be restored with the data restoration
function.
0: All target data
1: Device/label data only
2: All target data except for the device/label data
Set the data restoration function using the following bit pattern.
(OFF: Disabled, ON: Enabled)
b15
b14
b13
0
b0: Auto restoration request
b1: Initialization setting at the automatic restoration
b13: Restoration target folder
b14: Restoration for the special relay and special register
b15: Setting of operation after restoration
Store the target folder (date folder) of the data restoration using
BCD code.
SD957
b31
b24 b23
b16
b15
(4)
(3)
(2)
(1) Day (1 to 31)
(2) Month (1 to 12)
(3) Year (last two digits) (0 to 99)
(4) Year (first two digits) (0 to 99)
[Example] To specify the date folder of June 15 2015, store
"20150615H".
Specify the target folder of the data restoration.
1 to 32767: Serial number of the backup folder (*****) in a date
folder (00001 to 32767)
The cause of the error that occurred during the data restoration is
stored.
• 0: No error
• Other than 0: Error codes
"0" is set at the start of the data backup.
R/W
R
R
R/W
R
R/W
R/W
b1
b0
R/W
SD956
b8 b7
b0
(1)
R/W
R
APPX
Appendix 2 Special Register List
A
355