Specifications

Appendix 6 Universal Serial Communications App6-19
• Read Clear Escape (Backup) Address
Set the top address for the read clear backup area. The area size will be the same as the
previously described read clear area.
The number of words written in the read clear backup area are the same as the number specified
for the read clear area.
- Read Clear and Read Clear Backup Action
The action that occurs when a read command from the host tries to access to the read clear
area is shown in the following diagram.
Following allocation of the read clear backup area, backup data of the system memory write
area is stored as shown below.
• Default Initial Screen
Set the number of the screen to be displayed when power to the V series is turned on.
CFMDAT
SCRN_COM
SCRN_No
SW0
SW1
ENT0
ENT1
ENT2
GREPNS
n+0
Read command
Backup words
Data transmission to
the specified address
Address is in the read
clear area.
Data is copied to the read
clear backup area.
Data clear
Address +1
Finish
Transmission word −1
transmission
NO
NO
YES
YES
Read clear backup area
Reserved (7 words)