User's Manual

Using and Managing Memory
Memories that a user can use in Cybird are classified into the following three types:
1.
RAM Area
RAM is used as a space to save data and/or files and to use programs. In other words, a user can save data and/or
files and install programs in RAM area. RAM is mainly used when a program is executed. For the sake of
performance and safe use of the system, take the following matters into consideration when using Cybird:
1) When several programs are executed at the same time, program execution speed may be lowered due to
insufficiency of memory or when the entire area of RAM is in use, Cybird may not operate normally.
So, be sure to execute only indispensable programs at the same time.
2) Remove unnecessary or insignificant files or data or save them in an IPSM or a CF card whenever
possible, to secure a sufficient RAM area required for program execution.
(Caution)
RAM is a volatile memory, so the content saved in RAM is all lost when power is not supplied to
Cybird (both main battery and backup battery are completely discharged) or when the system is reset by Hard
Reset. Therefore, back up data periodically so as to restore the lost data in case of data loss.
2. IPSM Area
IPSM is a nonvolatile permanent memory that plays the same role as the hard disk of a PC. Data stored in IPSM
is not lost even when Cybird is not supplied with power or is reset by Hard Reset. Therefore, it is possible to
secure the safety of data if you copy important data to IPSM from time to time.
(Caution)
When IPSM is formatted, all data contained in it is all lost the same as the hard disk formatting of a
PC. Therefore, before formatting IPSM, copy necessary data to a PC using a CF card or ActiveSync in advance.
3. External Storage Device
Cybird supports CF-type memory cards. The CF memory card is an insert/pull-out type storage device like
floppy disks for a PC, which can be inserted to the CF card slot of Cybird to store data. As the CF card memory
can preserve data permanently, it can be used for backing up the data stored in RAM area to preserve it safely.
For more details about how to use the CF card, see Chapter 9 “Compact Flash Card”.
System Reset
When Cybird does not operate normally, it is possible to make it operate normally by resetting the system.
System reset can be performed either by Soft Reset and Hard Reset:
1. Soft Reset
When Cybird execution speed is suddenly lowered or the system does not operate normally for a while, perform