Sony 486DX Overview, 2 I/O Port Address Select SW1-1 & SW1-2, DEVICE=C\DOS\EMM386.EXE X=C800-CFFF

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AR-B1474 User¡¦s Guide

5.2.1 Overview

There is 1 DIP Switch located on the AR-B1474. It performs the following functions:

ON

OFF 1 2 3 4 5 6 7 8

Figure 5-2 SW1: Switch Select

SW1-1 & SW1-2 Set the base I/O port address SW1-3 & SW1-4 Set the starting memory address SW1-5 & SW1-6 Set the drive number of solid state

disk

SW1-7 & SW1-8 Set the used ROM memory chips

5.2.2 I/O Port Address Select (SW1-1 & SW1-2)

SW1-1 & SW1-2 are provided to select one of the four base port addresses for the watchdog timer and the solid state disk. The AR-B1474 occupies 6 I/O port addresses. Followings state selections of base port address.

SW1-1	SW1-2	Base Port	Solid State Disk	Watchdog
OFF (*)	OFF	210h	210h-213h	214h-215h
ON	OFF	290h	290h-293h	294h-295h
OFF	ON	310h	310h-313h	314h-315h
ON	ON	390h	390h-393h	394h-395h

Table 5-1 I/O Port Address Select

5.2.3 SSD Firmware Address Select (SW1-3 & SW1-4)

The AR-B1474‘s SSD firmware occupies 16KB of memory. SW1-3 & SW1-4 are used to select the memory base address. You must select an appropriate address so that the AR-B1474 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.

SW1-3	SW1-4	SSD BIOS Address	Bank Memory Address
OFF (*)	OFF	C800:0 (8KB)	CA00:0 (8KB)
ON	OFF	CC00:0 (8KB)	CE00:0 (8KB)
OFF	ON	D000:0 (8KB)	D200:0 (8KB)
ON	ON	DC00:0 (8KB)	DE00:0 (8KB)

Table 5-2 SSD Firmware Address Select

If you are not going to use the solid state disk (SSD), you could use JP7 to disable the SSD BIOS. The AR-B1474 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-B1474. For example, write a statement in the CONFIG.SYS file as follow: (If the memory configuration of AR-B1474 is C800:0)

DEVICE=C:\DOS\EMM386.EXE X=C800-CFFF

5-2

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Contents Industrial Grade 486DX/DX2/DX4 CPU Card Page Table of Contents Bios Console Specifications Placement & DimensionsMemory Banks & Programming RS-485 SSD Types Supported & IndexPreface Static Electricity Precautions OrganizationOverview IntroductionFeatures Packing ListSystem Controller DMA ControllerKeyboard Controller DMA ControllerInterrupt Controller Interrupt ControllerHex Range Device 1 I/O Port Address MapI/O Port Address Map Timer Real-Time Clock and Non-Volatile RAMAddress Description Real-Time Clock & Non-Volatile RAMISA Bus Pin Assignment ISA Bus Pin AssignmentISA Bus Signal Description Name DescriptionSerial Port Receiver Buffer Register RBRTransmitter Holding Register THR DlabInterrupt Enable Register IER Interrupt Identification Register IIRLine Control Register LCR Modem Control Register MCRParallel Port Modem Status Register MSRDivisor Latch LS, MS Register AddressPrinter Status Buffer Data SwapperPrinter Control Latch & Printer Control Swapper Setting UP the System OverviewSystem Setting RS-232 Connector DB1 & DB2Serial Port RS-485 Adapter Select JP3 & JP11Power Connector J5 Hard Disk IDE Connector CN1HDD Pin Assignment Parallel Port Connector CN3 FDD Port Connector CN2CN3 Pin PC/104 Connector Bus a & B CN6 6 PC/104 ConnectorPin PC/104 Connector Bus C & D CN4 PC/104 ISA Bus Signal Description IRQ 3-7, 9-12, 14CPU Setting AMD DX2-80 CPU Select JP1CPU Voltage Select JP2 AMD 4X CPU 5x86 Select JP15CPU Clock Setting CPU Clock Select JP6 & JP9Memory Setting Dram ConfigurationCache RAM Size Select JP8 SIMM1Keyboard Connector LED Header J1, J2 & J4Reset Header J7 Battery SettingExternal Speaker Header J3 CRT Display Type Select JP13Page Installation Utility Diskette PGM1474.EXEWP1474.EXE WD1474.EXEBU1474.EXE Display Error in PGF File Help to PGF FileEnable the Software Write Protect Disable the Software Write ProtectWrite Protect Function Hardware Write ProtectWatchdog Timer Watchdog Timer SettingTime-Out Setting Time Factor Time-Out Period Seconds Watchdog Timer Trigger Watchdog Timer Enabled Watchdog Timer Disabled Page Switch Setting Solid State DiskOverview 2 I/O Port Address Select SW1-1 & SW1-2SSD Firmware Address Select SW1-3 & SW1-4 DEVICE=C\DOS\EMM386.EXE X=C800-CFFFSimulate 2 Disk Drive SSD Drive Number SW1-5 & SW1-6Flash Eprom Sram ROM Type Select SW1-7 & SW1-8 Disk Drive Name ArrangementJumper Setting SSD Bios Select JP7SSD Memory Type Setting M1 ~ M3 & JP5 ROM Disk InstallationSwitch and Jumper Setting UV Eprom 27CxxxUV Eprom 27CXXX Switch Setting Software Programming5V Large Flash 29FXXX Switch Setting Large Page 5V Flash Disk5V Flash 29CXXX & 28EEXXX Switch Setting Small Page 5V Flash ROM DiskUsing Tool Program Typing DOS CommandJumper Setting RAM DiskInstallation D.O.C Hardware SettingSSD Bios Setting JP7 Combination of ROM and RAM DiskSoftware Setting O.C. Setting SW1-8Page Bios Console Bios Setup OverviewStandard Cmos Setup Date & Time SetupFloppy Setup Hard Disk SetupAdvanced Cmos Setup IDE Block Mode Transfer IDE LBA ModeInternal Cache Memory ShadowAdvanced Chipset Setup Power Management Setting Password Password CheckingAuto Configuration with Optimal Setting Auto Configuration with Fail Safe SettingSave Settings and Exit Bios ExitExit Without Saving Specifications BiosCPU PCBPage Placement & Dimensions PlacementDimensions Using Memory Bank Memory Banks & Programming RS-485CS1 CS0 SocketInitialize COM port Programming RS-485Send out one character Transmit Receive data Send out one character to COM1Page SSD Types Supported & Index SSD Types Supported10-2 Index Name Function