Sony 486DX, DX4, AR-B1474 manual Large Page 5V Flash Disk, 5V Large Flash 29FXXX Switch Setting

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AR-B1474 User¡¦s Guide

5.4.2 Large Page 5V FLASH Disk

If you are using large page 5V FLASH as ROM disk, it is the same procedure as step 1 to step 4 of using the UV EPROM.

(2) Switch and Jumper Setting

Step 1: Use jumper block to set the memory type as ROM (FLASH).

Step 2: Select the proper I/O base port, firmware address, disk drive number and large page 5V FLASH type on SW1.

Step 3: Insert programmed EPROM(s) or FLASH(s) chips into sockets starting at MEM1.

ON

OFF 1 2 3 4 5 6 7 8

Figure 5-7 5V Large FLASH (29FXXX) Switch Setting

A B C

1

2

3

JP5

1 2 3

M1, M2 & M3

5V FLASH (64KX8, 128KX8 and 256KX8)

(Factory Preset)

A B C

1

2

3

M1, M2 & M3

JP5

1 2 3

5V FLASH (512KX8 Only)

Figure 5-8 Large Page 5V FLASH Jumper Setting

(2) Software Programming

And then, you should create a PGF and generate ROM pattern files by using the RFG.EXE.

Step 1: Making a Program Group File (*.PGF file)

Step 2: Generate ROM pattern files

Step 3: Turn off your system, and then install FLASH EPROMs into the sockets.

NOTE: Place the appropriate number of FLASH EPROM chips (the numbers depends on the ROM pattern files generated by RFG.EXE) into the socket starting from MEM1 and ensure that the chips are installed in the sockets in the proper orientation. Line up and insert the AR-B1474 board into any free slot of your computer.

5-8

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Contents Industrial Grade 486DX/DX2/DX4 CPU Card Page Table of Contents Memory Banks & Programming RS-485 Bios ConsoleSpecifications Placement & Dimensions SSD Types Supported & IndexPreface Static Electricity Precautions OrganizationOverview IntroductionFeatures Packing ListKeyboard Controller System ControllerDMA Controller DMA ControllerInterrupt Controller Interrupt ControllerHex Range Device 1 I/O Port Address MapI/O Port Address Map Address Description TimerReal-Time Clock and Non-Volatile RAM Real-Time Clock & Non-Volatile RAMISA Bus Pin Assignment ISA Bus Pin AssignmentISA Bus Signal Description Name DescriptionTransmitter Holding Register THR Serial PortReceiver Buffer Register RBR DlabLine Control Register LCR Interrupt Enable Register IERInterrupt Identification Register IIR Modem Control Register MCRDivisor Latch LS, MS Parallel PortModem Status Register MSR Register AddressPrinter Status Buffer Data SwapperPrinter Control Latch & Printer Control Swapper Setting UP the System OverviewSerial Port System SettingRS-232 Connector DB1 & DB2 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 Voltage Select JP2 CPU SettingAMD DX2-80 CPU Select JP1 AMD 4X CPU 5x86 Select JP15CPU Clock Setting CPU Clock Select JP6 & JP9Cache RAM Size Select JP8 Memory SettingDram Configuration SIMM1Keyboard Connector LED Header J1, J2 & J4External Speaker Header J3 Reset Header J7Battery Setting CRT Display Type Select JP13Page Installation Utility Diskette PGM1474.EXEWP1474.EXE WD1474.EXEBU1474.EXE Display Error in PGF File Help to PGF FileWrite Protect Function Enable the Software Write ProtectDisable the Software Write Protect Hardware Write ProtectTime-Out Setting Watchdog TimerWatchdog Timer Setting Time Factor Time-Out Period SecondsWatchdog Timer Trigger Watchdog Timer EnabledWatchdog Timer Disabled Page Switch Setting Solid State DiskSSD Firmware Address Select SW1-3 & SW1-4 Overview2 I/O Port Address Select SW1-1 & SW1-2 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 JP7Switch and Jumper Setting SSD Memory Type Setting M1 ~ M3 & JP5ROM Disk Installation 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 DiskSSD Bios Setting JP7 Installation D.O.CHardware Setting Combination of ROM and RAM DiskSoftware Setting O.C. Setting SW1-8Page Bios Console Bios Setup OverviewFloppy Setup Standard Cmos SetupDate & Time Setup Hard Disk SetupAdvanced Cmos Setup Internal Cache Memory IDE Block Mode TransferIDE LBA Mode ShadowAdvanced Chipset Setup Power Management Auto Configuration with Optimal Setting Setting PasswordPassword Checking Auto Configuration with Fail Safe SettingSave Settings and Exit Bios ExitExit Without Saving CPU SpecificationsBios PCBPage Placement & Dimensions PlacementDimensions CS1 CS0 Using Memory BankMemory Banks & Programming RS-485 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

DX4, AR-B1474, 486DX specifications

The Sony 486DX, AR-B1474, and DX4 are notable examples of advanced computing technologies from the early to mid-1990s, a time when personal computers were rapidly evolving to meet increasing user demands. These systems played a pivotal role in shaping the landscape of modern computing.

The Sony 486DX is built around the popular Intel 80486 microprocessor, which was a significant step up from its predecessor, the 386. The 486DX featured a 32-bit architecture and introduced integrated cache memory, which greatly enhanced data processing speeds and overall system performance. Operating at clock speeds typically ranging from 25 to 100 MHz, the 486DX models provided a solid foundation for running more sophisticated software applications and advanced games of the era.

Accompanying the 486DX was the AR-B1474 motherboard, designed to maximize the potential of the 486 architecture. This motherboard featured support for up to 512 KB of level 2 cache memory, further boosting performance for data-heavy tasks. The AR-B1474 also included extensive connectivity options, with ISA slots for legacy devices, as well as support for EISA, making it compatible with a wide range of hardware peripherals. This versatility made the AR-B1474 a popular choice among builders of custom desktop PCs during its time.

The DX4, another significant milestone, built upon the 486 architecture by introducing a clock-doubling technique. By effectively allowing the processor to perform operations at up to three times its base clock speed (typically 75 or 100 MHz), the DX4 could handle even more demanding applications, thereby providing users with significant performance improvements without requiring a complete overhaul of their systems.

Both the 486DX and DX4 processors facilitated advancements in multimedia capabilities, with improved graphics rendering and audio performance that supported CD-ROMs and early gaming technologies. This made them particularly appealing to consumers looking for a versatile machine for both work and entertainment.

Overall, the combination of the Sony 486DX, AR-B1474 motherboard, and DX4 processor exemplifies a significant chapter in computing history, showcasing how hardware advancements seamlessly integrated with user needs for performance and flexibility. As these technologies laid the groundwork for future innovations, they remain noteworthy for their contributions to the evolution of personal computing.
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