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APPX
Appendix 5 List of Special Register Areas
CPU module data backup/restoration function
The following is the list of special register areas relating to the CPU module data backup/restoration function.
*1 When program files are restored, the progress in SD1351 stops while data is being written (transferred) to the program memory in the
restoration processing because the data is transferred from the program cache memory to the program memory. The progress of data
transfer to the program memory can be checked in SD629.
*2 There are restrictions on the firmware version of the CPU module and software version of the engineering tool. ( Page 747 Added
and Enhanced Functions)
Interrupt pointer mask pattern
The following is the list of special register areas relating to the mask pattern for interrupt pointers.
No. Name Data stored Details Set by (setting
timing)
SD1350 Number of uncompleted
folders/files of CPU
module data backup/
restoration
*2
Number of uncompleted
folders/files of CPU
module data backup/
restoration
This register indicates the number of folders/files where the backup/
restoration of the CPU module is not completed. When the backup/
restoration processing is started, the total number of folders and
files to be backed up or restored is stored. The number is reduced
one each time one folder/file is backed up or restored, and 0 is
stored when all the data is backed up or restored.
S (Status change)
SD1351 Progression status of
CPU module data
backup/restoration
*2
Progression status of
CPU module data
backup/restoration
• This register indicates the progression status of the backup or
restoration in percentage.
*1
Range of the value: 0 to 100 (%)
• "0" is set at the start of the CPU module data backup.
S (Status change)
SD1353 Upper limit value setting
for the number of CPU
module backup data
*2
Setting of the upper limit
value for the number of
CPU module backup data
Set the upper limit value for the number of the backup data for the
CPU module data backup. (1 to 100)
U
No. Name Data stored Details Set by (setting
timing)
SD1400
to
SD1463
Interrupt pointer mask
pattern
Mask pattern The mask pattern for interrupt pointers is stored as shown in the
following figure:
S (at execution)
b15 b1 b0
SD1400 I15 I1 I0
SD1401 I31 I17 I16
SD1463 I1023 I1009 I1008
to
to
to
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