4. SSCNET COMMUNICATION DRIVERS
4
−
10
(3) Setting the occupied addresses (SW4)
Set the addresses occupied by the interface board on the personal computer.
SW4
Definition
Default
Remarks
1
Not used
OFF
Always set to OFF.
2
Controller setting line 1
(CON1 port)
OFF
3
Controller setting line 2
(CON2 port)
OFF
Always set to ON.
4
Address selection 1
OFF
5
Address selection 2
OFF
6
Address selection 3
OFF
Set the occupied addresses.
For details, refer to the
following Table 4.1.
7
8/16 bit width selection
OFF
Set the bit width of the ISA
bus.
Set to OFF (16 bits).
OFF : 16 bits
ON : 8 bits
123
4
ON
5678
8
IRQ switching
OFF
Always set to ON.
1) Address selection 1 to 3 (SW4-4 to 6) and occupied regions
One interface board occupies a 16K byte region.
Table 4.1 Occupied Address Regions
Table 4.1 Occupied Address Regions
Switch
Occupied Address
Region
CON1 Port Region
CON2 Port Region
4
5
6
First to last
First to last
First to last
OFF OFF OFF
C0000h to C3FFFh
C0000h to C0FFFh
C1000h to C1FFFh
OFF OFF
ON
C4000h to C7FFFh
C4000h to C4FFFh
C5000h to C5FFFh
OFF
ON
OFF
C8000h to CBFFFh
C8000h to C8FFFh
C9000h to C9FFFh
OFF
ON
ON
CC000h to CFFFFh
CC000h to CCFFFh
CD000h to CDFFFh
ON
OFF OFF
D0000h to D3FFFh
D0000h to D0FFFh
D1000h to D1FFFh
ON
OFF
ON
D4000h to D7FFFh
D4000h to D4FFFh
D5000h to D5FFFh
ON
ON
OFF
D8000h to DBFFFh
D8000h to D8FFFh
D9000h to D9FFFh
ON
ON
ON
DC000h to DFFFFh
DC000h to DCFFFh
DD000h to DDFFFh