SMC Networks 486DX4 - Manual (Page 52)

AR-B1462 User¡ ¦s Guide
6-2
6.2.1 Overview
There is 1 DIP Switch located on the AR-B1462. It performs the following functions:
ON
1 2 3 4 5 6 7 8 9 10
OFF
Figure 6-2 SW1: Switch Select
SW1-1 Set the base I/O port address
SW1-2 Set the starting memory address
SW1-3 Reserved
SW1-4 & SW1-5 Set the drive number of solid state
disk
SW1-6 & SW1-7 Set the used ROM memory chips
SW1-8, SW1-9 &
SW1-10
Mode select of serial port 1/2
6.2.2 I/O Port Address Select (SW1-1)
SW1-1 is provided to select one of the four base port addresses for the watchdog timer and the solid state disk.
The AR-B1462 occupies 6 I/O port addresses. Followings state selections of base port address.
SW1-1 Base Port Solid State Disk Watchdog
OFF (*) 210h 210h-213h 214h-215h
ON 290h 290h-293h 294h-295h
Table 6-1 I/O Port Address Select
6.2.3 SSD Firmware Address Select (SW1-2)
The AR-B1462‘ s SSD firmware occupies 32KB of memory. SW1-2 is used to select the memory base address.
You must select an appropriate address so that the AR-B1462 will not conflict with memory installed on other add-
on memory cards. Additionally, be sure not to use shadow RAM area or EMM driver’ s page frame in this area.
SW1-2 SSD BIOS Address Bank Memory Address
OFF (*) D000:0 (16KB) CC00:0 (16KB)
ON D000:0 (16KB) D400:0 (16KB)
Table 6-2 SSD Firmware Address Select
If you are not going to use the solid state disk (SSD), you can use BIOS setup program to disable the SSD BIOS.
The AR-B1462 will not occupy any memory address if the SSD BIOS is disabled.
If you are going to install the EMM386.EXE driver, please use the [X] option to prevent EMM386.EXE from using
the particular range of segment address as an EMS page which is used by AR-B1462. For example, write a
statement in the CONFIG.SYS file as follow: (If the memory configuration of AR-B1462 is CC00:0)
DEVICE=C:\DOS\EMM386.EXE X=CC00-CFFF