User`s manual

ST-174-R2-090294
SEGA Enterprises, Ltd.
(RDJ, 7/18/94)
32
SCSI ID Setting
The ID of the SCSI must be set in order to connect the graphics/program
development SCSI (main SCSI) to the Host computer (PC/AT, MAC, etc.).
A number (1~6) can be used for the ID of the SCSI. Use an ID which is not used for
the SCSI equipment (i.e. HDD, etc.) and that has already been connected.
See Figures 1.1 and 1.2 for the location of the switches. The switches are set as ID=1
when shipped.
Figure 3.4 explains how to set the ON, OFF, and switch numbers for setting
switches. Be sure to turn the power off before changing switch settings.
Table 3.5 SCSI ID settings
Switch No.
ID number
345678
0 x ON * OFF OFF OFF
1 x ON * OFF OFF ON
2 x ON * OFF ON OFF
3 x ON * OFF ON ON
4 x ON * ON OFF OFF
5 x ON * ON OFF ON
6 x ON * ON ON OFF
7 x ON * ONONON
Note 1: Boot from the SCSI when x mark is ON, and use graphics tool. When OFF, select the
setting where it does not boot up.
Note 2: Select the setting so that the SIMM is configured in the cartridge area when the * mark is
ON when the SIMM is loaded, and select the setting so that the SIMM is not configured in
the cartridge area when the * mark is OFF. (Only in the Programming Box, 8MB of SIMM is
installed as standard.)
Note 3: Areas indicated by double lines are settings at shipment time.
ID 0 and 7 are used on the MAC side, so do not set to these values.
Increasing Extended Memory
Extended memory is prepared, among other things, as the substitute memory of the
cartridge ROM. An 8 Mbyte SIMM (Single-In-Line-Memory Module) is mounted
into the SIMM socket in the Programming Box at shipment.
The user can add three 8 Mbyte SIMMs for a maximum of 32 Mbytes of memory.
Extended memory exists on the A-Bus board. Before adding extended memory be
sure to turn off the Target Box power first.