9
Bank change-over procedure
User’s computer
It writes bank number into the bank change-over request register.
SL-VPCI
HML0 + 00
HML0 + 3F
Data area
HML0 + 4B
Bank change-over request
register
HML0 + 4C
Bank change-over response
register
User’s
computer
Internal
circuit
SL-VPCI
Internal circuit reads out bank number of the bank change-over request register.
SL-VPCI
Internal circuit switches the data area to the information corresponding to the bank number.
SL-VPCI
The internal circuit switches to the bank change-over response register and then writes in the
bank number.
User’s computer
It reads out bank number of the bank change-over response register.
User’s computer
When the requested bank number and the bank number read from the bank change-over re-
sponse register match, information from the data area is read out.
Note: In case of
S-LINK V
I/O (Bank number = 00H) and interruption setting (Bank number = 07H), the
internal circuit maintains the condition even if switches to other bank.
