Sony 486DX инструкция обслуживания

AR-B1474 INDUSTRIAL GRADE 486DX/DX2/DX4 CPU CARD Use r ’ s Guide Edition: 3.1 Book Number: AR-B1474-99.B01[...]

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AR-B1474 User ¡¦ s Guide 0-1 Table of Contents 0. PREFACE ....................................................................................................................................................... 0-3 0.1 COPYRIGHT NOTICE AND DISCLAIMER ..................................................................................................[...]

AR-B1474 User ¡¦ s Guide 0-2 5.4 ROM DISK INSTALL ATION ........................................................................................................................................................ 5-6 5.4.1 UV EPROM (27Cxxx) ...............................................................................................................[...]

AR-B1474 User ¡¦ s Guide 0-3 0. PREFACE 0.1 COPYRIGHT NOTICE AND DISCLAIMER September 1995 Acrosser Technology makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Acrosser Technology reserves the right to[...]

AR-B1474 User ¡¦ s Guide 0-4 0.6 ORGANIZATION This information for users covers the following topics (see the Table of Contents for a detailed listing): l Chapter 1, “ Overview ” , provides an overview of the system features and packing list. l Chapter 2, “ System Controller ” describes the major structure. l Chapter 3, “ Setting Up the[...]

AR-B1474 User ¡¦ s Guide 1-1 1. OVERVIEW This chapter provides an overview of your system features and capabilities. The following topics are covered: l Introduction l Packing List l Features 1.1 INTRODUCTION The AR-B1474 is a half size industrial grade CPU card that has been designed to withstand continuous operation in harsh environments. The t[...]

AR-B1474 User ¡¦ s Guide 1-2 1.2 PACKING LIST The accessories are included with the system. Before you begin installing your AR-B1474 card, take a moment to make sure that the following items have been included inside the AR-B1474 package. l The quick setup manual l 1 AR-B1474 all-in-one CPU card l 1 Keyboard adapter cable l 1 Parallel port inter[...]

AR-B1474 User ¡¦ s Guide 2-1 2. SYSTEM CONTROLLER This chapter describes the major structure of the AR-B1474 serial CPU board. The following topics are covered: l DMA Controller l Keyboard Controller l Interrupt Controller l Serial Port l Parallel Port 2.1 DMA CONTROLLER The equivalent of two 8237A DMA controllers are implemented in the AR-B1474 [...]

AR-B1474 User ¡¦ s Guide 2-2 2.3 INTERRUPT CONTROLLER The equivalent of two 8259 Programmable Interrupt Controllers (PIC) are included on the AR-B1474 card. They accept requests from peripherals, resolve priorities on pending interrupts in service, issue interrupt requests to the CPU, and provide vectors which are used as acceptance indices by th[...]

AR-B1474 User ¡¦ s Guide 2-3 2.3.1 I/O Port Address Map Hex Range Device 000-01F DMA controller 1 020-021 Interrupt controller 1 022-023 M1429 chipset address 040-04F Timer 1 050-05F Timer 2 060-06F 8042 keyboard/controller 070-071 Real-time clock (RTC), non-maskable interrupt (NMI) 080-09F DMA page registers 0A0-0A1 Interrupt controller 2 0C0-0D[...]

AR-B1474 User ¡¦ s Guide 2-4 2.3.2 Real-Time Clock and Non-Volatile RAM The AR-B1474 contains a real-time clock compartment that maintains the date and time in addition to storing configuration information about the computer system. It contains 14 bytes of clock and control registers and 114 bytes of general purpose RAM. Because of the use of CMO[...]

AR-B1474 User ¡¦ s Guide 2-5 2.3.4 ISA Bus Pin Assignment I/O Pin Signal Name Input/Output I/O Pin Signal Name Input/Output A1 -IOCHCK Input B1 GND Ground A2 SD7 Input/Output B2 RSTDRV Output A3 SD6 Input/Output B3 +5V Power A4 SD5 Input/Output B4 IRQ9 Input A5 SD4 Input/Output B5 -5V Power A6 SD3 Input/Output B6 DRQ2 Input A7 SD2 Input/Output B7[...]

AR-B1474 User ¡¦ s Guide 2-6 2.3.5 ISA Bus Signal Description Name Description BUSCLK [Output] The BUSCLK signal of the I/O channel is asynchronous to the CPU clock. RSTDRV [Output] This signal goes high during power-up, low line-voltage or hardware reset SA0 - SA19 [Input / Output] The System Address lines run from bit 0 to 19. They are latched [...]

AR-B1474 User ¡¦ s Guide 2-7 Name Description -MASTER [Input] The MASTER is the signal from the I/O processor which gains control as the master and should be held low for a maximum of 15 microseconds or system memory may be lost due to the lack of refresh -MEMCS16 [Input, Open collector] The Memory Chip Select 16 indicates that the present data t[...]

AR-B1474 User ¡¦ s Guide 2-8 (3) Interrupt Enable Register (IER) Bit 0: Enable Received Data Available Interrupt (ERBFI) Bit 1: Enable Transmitter Holding Empty Interrupt (ETBEI) Bit 2: Enable Receiver Line Status Interrupt (ELSI) Bit 3: Enable MODEM Status Interrupt (EDSSI) Bit 4: Must be 0 Bit 5: Must be 0 Bit 6: Must be 0 Bit 7: Must be 0 (4) [...]

AR-B1474 User ¡¦ s Guide 2-9 (8) MODEM Status Register (MSR) Bit 0: Delta Clear to Send (DCTS) Bit 1: Delta Data Set Ready (DDSR) Bit 2: Training Edge Ring Indicator (TERI) Bit 3: Delta Receive Line Signal Detect (DSLSD) Bit 4: Clear to Send (CTS) Bit 5: Data Set Ready (DSR) Bit 6: Ring Indicator (RI) Bit 7: Received Line Signal Detect (RSLD) (9)[...]

AR-B1474 User ¡¦ s Guide 2-10 (3) Data Swapper The system microprocessor can read the contents of the printer ’ s Data Latch through the Data Swapper by reading the Data Swapper address. (4) Printer Status Buffer The system microprocessor can read the printer status by reading the address of the Printer Status Buffer. The bit definitions are de[...]

AR-B1474 User ¡¦ s Guide 3-1 3. SETTING UP THE SYSTEM This section describes pin assignments for system ’ s external connectors and the jumpers setting. l Overview l System Setting 3.1 OVERVIEW The AR-B1474 is a half size industrial grade CPU card that has been designed to withstand continuous operation in harsh environments. The total on-board[...]

AR-B1474 User ¡¦ s Guide 3-2 3.2 SYSTEM SETTING Jumper pins allow you to set specific system parameters. Set them by changing the pin location of jumper blocks. (A jumper block is a small plastic-encased conductor that slips over the pins.) To change a jumper setting, remove the jumper from its current location with your fingers or small needle-n[...]

AR-B1474 User ¡¦ s Guide 3-3 3.2.2 Hard Disk (IDE) Connector (CN1) A 40-pin header type connector (CN1) is provided to interface with up to two embedded hard disk drives (IDE AT bus). This interface, through a 40-pin cable, allows the user to connect up to two drives in a “ daisy chain ” fashion. To enable or disable the hard disk controller,[...]

AR-B1474 User ¡¦ s Guide 3-4 3.2.4 FDD Port Connector (CN2) The AR-B1474 provides a 34-pin header type connector for supporting up to two floppy disk drives. To enable or disable the floppy disk controller, please use BIOS Setup program to select. 1 2 33 34 Figure 3 - 7 CN2: FDD Port connector Pin Signal Pin Signal 1-33(odd) GROUND 18 -DIRECTION [...]

AR-B1474 User ¡¦ s Guide 3-5 3.2.6 PC/104 Connector (1) 64-Pin PC/104 Connector Bus A & B (CN6) 1 2 64-Pin PC/104 Connector 63 64 A B -IOCHCK --- SD7 --- SD6 --- SD5 --- SD4 --- SD3 --- SD2 --- SD1 --- SD0 --- IOCHRDY--- AEN --- SA19 --- SA18 --- SA17 --- SA16 --- SA15 --- SA14 --- SA13 --- SA12 --- SA11 --- SA10 --- A1 A2 A3 A4 A5 A6 A7 A8 A[...]

AR-B1474 User ¡¦ s Guide 3-6 (3) PC/104 ISA Bus Signal Description Name Description BUSCLK [Output] The BUSCLK signal of the I/O channel is asynchronous to the CPU clock. RSTDRV [Output] This signal goes high during power-up, low line-voltage or hardware reset SA0 - SA19 [Input / Output] The System Address lines run from bit 0 to 19. They are lat[...]

AR-B1474 User ¡¦ s Guide 3-7 Name Description -MASTER [Input] The MASTER is the signal from the I/O processor which gains control as the master and should be held low for a maximum of 15 microseconds or system memory may be lost due to the lack of refresh -MEMCS16 [Input, Open collector] The Memory Chip Select 16 indicates that the present data t[...]

AR-B1474 User ¡¦ s Guide 3-8 (4) CPU Clock Select (JP6 & JP9) For different type of CPUs, the clock generator and clock divisor need to be set by JP6 and JP9. The clock base is selected by JP6, JP9 is used to select single or half clock system. We recommend that you refer the following table for setting the CPU clock. 2X 1 2 3 1X 1 2 3 1 2 3 [...]

AR-B1474 User ¡¦ s Guide 3-9 3.2.8 Memory Setting (1) Cache RAM Size Select (JP8) The AR-B1474 can be configured to provide a write-back or write-through cache scheme and support 128KB to 512KB cache systems. A write-back cache system may provide better performance than a write-through cache system. The BIOS Setup program allows you to set the ca[...]

AR-B1474 User ¡¦ s Guide 3-10 3.2.9 LED Header (J1, J2 & J4) (1) External Power LED & Keyboard Lock Header (J4) 1 Power LED+ 2 Not Used 3 Power LED- 4 Key-Lock+ 5 Key-Lock- Figure 3 - 16 J4: Power LED & Key Lock Header (2) HDD LED Header (J1) 1 2 LED+ LED- Figure 3 - 17 J1: HDD LED Header (3) Watchdog LED Header (J2) 1 LED+ 2 LED- Fig[...]

AR-B1474 User ¡¦ s Guide 3-11 3.2.11 External Speaker Header (J3) Besides the on board buzzer, you can use an external speaker by connecting J3 header directly. 1 Speaker+ 2 Speaker- 3 Speaker- 4 Speaker- J3 Figure 3 - 21 J3: External Speaker Header 3.2.12 Reset Header (J7) J7 is used to connect to an external reset switch. Shorting these two pin[...]

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AR-B1474 User ¡¦ s Guide 4-1 4. INSTALLATION This chapter describes the procedure of the installation. The following topics are covered: l Overview l Utility Diskette l Write Protect Function l Watchdog Timer 4.1 OVERVIEW This chapter provides information for you to set up a working system based on the AR-B1474 CPU card. Please read the details o[...]

AR-B1474 User ¡¦ s Guide 4-2 4.2 UTILITY DISKETTE To support the AR-B1474 solid state dis k ’ s operations, the following programs or files has been provided on the accompanying utility diskette: (1) PGM1474.EXE PGM1474.EXE PGM1474.EXE is used to program the 12V FLASH EPROM after the ROM pattern files are generated by RFG.EXE The PGM1474.EXE ca[...]

AR-B1474 User ¡¦ s Guide 4-3 (2) WD1474.EXE WD1474.EXE This program demonstrates how to enable and trigger the watchdog timer. It allows you to test the <TIMES-OUT & RESET> function when the watchdog timer is enabled. (3) WP1474.EXE WP1474.EXE This program demonstrates how to enable and disable software write protected function. It also[...]

AR-B1474 User ¡¦ s Guide 4-4 stated in your PGF). The ROM pattern files will have the same file names, but will have different extension names. For example: TEST.R01, TEST.R02, TEST.R0 3 … etc. Display Error in PGF File This option displays errors that were detected in your PGF. Help to PGF File This option gives information on how to write a P[...]

AR-B1474 User ¡¦ s Guide 4-5 4.3 WRITE PROTECT FUNCTION The AR-B1474 provides hardware and software write protect functions for small page 5V FLASH disk and only software write protected function for SRAM disk. This is to prevent your data on 5V FLASH or SRAM disk from accidental deletion or overwrite. If your FLASH/SRAM disk is write protected, [...]

AR-B1474 User ¡¦ s Guide 4-6 4.4 WATCHDOG TIMER This section describes how to use the Watchdog Timer, disabled, enabled, and trigger. The AR-B1474 is equipped with a programmable time-out period watchdog timer. This watchdog timer can be enabled by your program. Once you have enabled the watchdog timer, the program should trigger it every time be[...]

AR-B1474 User ¡¦ s Guide 4-7 If you want to generate IRQ15 signal to warn your program when watchdog times out, the following table listed the relation of timer factors between time-out period. Time Factor Time-Out Period (Seconds) 0C0H 3 0C1H 6 0C2H 12 0C3H 18 0C4H 24 0C5H 30 0C6H 36 0C7H 42 Table 4 - 2 Time-Out Setting NOTE: 1. If you program t[...]

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AR-B1474 User ¡¦ s Guide 5-1 5. SOLID STATE DISK The section describes the various type SSD s ’ installation steps as follows. This chapter describes the procedure of the installation. The following topics are covered: l Overview l Switch Setting l Jumper Setting l ROM Disk Installation 5.1 OVERVIEW The AR-B1474 provides three 32-pin JEDEC DIP [...]

AR-B1474 User ¡¦ s Guide 5-2 5.2.1 Overview There is 1 DIP Switch located on the AR-B1474. It performs the following functions: ON 123456 OFF 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 & S[...]

AR-B1474 User ¡¦ s Guide 5-3 5.2.4 SSD Drive Number (SW1-5 & SW1-6) The AR-B1474 SSD can simulate one or two disk drives. You can assign the drive letter of the AR-B1474 by configuring SW1-5 & SW1-6. You can make the computer to boot from SSD by copying DOS into the SSD. If your SSD does not have DOS, the computer will boot from your hard[...]

AR-B1474 User ¡¦ s Guide 5-4 (2) Disk Drive Name Arrangement If any logical hard disk drives exist in your system, there will also be a different disk number depending on which version DOS you are using. The solid state disk drive number with there respective DOS drive designation are listed in table as follows. The solid state disk drive number [...]

AR-B1474 User ¡¦ s Guide 5-5 5.3 JUMPER SETTING Before installing the memory into memory sockets MEM1 through MEM3, you have to configure the memory type which will be used (ROM/RAM) on the AR-B1474. Each socket is equipped with a jumper to select the memory type. You can configure the AR-B1474 as a (FLASH) EPROM disk (ROM only), a SRAM disk (SRA[...]

AR-B1474 User ¡¦ s Guide 5-6 5.3.2 SSD Memory Type Setting (M1 ~ M3 & JP5) M1, M2 & M3 EPROM (128KX8, 256KX8 and 512KX8) 5V FLASH (64KX8, 128KX8 and 256KX8) (Factory Preset) 5V FLASH (512KX8 Only) SRAM M1, M2 & M3 M1, M2 & M3 1 2 3 AB C 1 2 3 AB C 1 2 3 AB C M1, M2 & M3 1 2 3 AB C 1 2 3 JP5 1MX8 EPROM (Only) 1 2 3 JP5 1 2 3 JP[...]

AR-B1474 User ¡¦ s Guide 5-7 ON 123456 OFF 7 8 Figure 5 - 5 UV EPROM (27CXXX) Switch Setting M1, M2 & M3 EPROM (128KX8, 256KX8 and 512KX8) 1 2 3 A B C M1, M2 & M3 1 2 3 A B C 1 2 3 JP5 1MX8 EPROM (Only) 1 2 3 JP5 Figure 5 - 6 UV EPROM Jumper Setting (2) Software Programming Use the UV EPROM, please refer to the follow steps: Step 1: Turn [...]

AR-B1474 User ¡¦ s Guide 5-8 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[...]

AR-B1474 User ¡¦ s Guide 5-9 Turn on your system, and Program FLASH EPROMs. Step 4: NOTE: The FLASH EPROM program is built-in the AR-B1474 board. The FLASH EPROMs can be programmed on the AR-B1474. Before programming the FLASH EPROMs, please insert at least the same number of FLASH EPROMs, please insert at least the same number of FLASH EPROMs, p[...]

AR-B1474 User ¡¦ s Guide 5-10 M1, M2 & M3 5V/12V FLASH (64KX8, 128KX8 and 256KX8) (Factory Preset) 5V FLASH (512KX8 Only) M1, M2 & M3 1 2 3 A B C 1 2 3 A B C 1 2 3 JP5 1 2 3 JP5 Figure 5 - 10 5V FLASH (29CXXX & 28EEXXX) Jumper Setting (2) Using Tool Program If small page 5V FLASH EPROMs are used, you can use the same method as step 1 [...]

AR-B1474 User ¡¦ s Guide 5-11 CAUTION: It is not recommended that the user formatted the disk and copy files to the FLASH disk very often. Since the FLASH EPRO M ’ s write cycle life time is about 10,000 or 100,000 times, writing data to the FLASH too often will reduce the life time of the FLASH EPROM chips, especially the FLASH EPROM chip in t[...]

AR-B1474 User ¡¦ s Guide 5-12 5.4.5 Combination of ROM and RAM Disk The AR-B1474 can be configured as a combination of one ROM disk and one RAM disk. Each disk occupies a drive unit. Step 1: Use jumper block to select the proper ROM/RAM configuration you are going to use. Step 2: Insert the first programmed EPROM into the socket mem1, the second [...]

AR-B1474 User ¡¦ s Guide 5-13 (3) D.O.C. Setting (SW1-8) ON 123456 OFF 7 8 Figure 5 - 14 SW1-8 : D.O.C. Setting Note: There is 1 DIP switch located on the AR-B1474. It performs the followings: SW1-1 & SW1-2 Set the base I/O port address SW1-3 & SW1-4 Set the starting memory address SW1-5, SW1-6 & SW1-7 The function now is unavailable [...]

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AR-B1474 User ¡¦ s Guide 6-1 6. BIOS CONSOLE This chapter describes the AR-B1474 BIOS menu displays and explains how to perform common tasks needed to get up and running, and presents detailed explanations of the elements found in each of the BIOS menus. The following topics are covered: l BIOS Setup Overview l Standard CMOS Setup l Advanced CMOS[...]

AR-B1474 User ¡¦ s Guide 6-2 6.2 STANDARD CMOS SETUP The <Standard CMOS Setup> option allows you to record some basic system hardware configuration and set the system clock and error handling. If the CPU board is already installed in a working system, you will not need to select this option anymore. Date & Time Setup Highlight the <D[...]

AR-B1474 User ¡¦ s Guide 6-3 6.3 ADVANCED CMOS SETUP The <Advanced CMOS SETUP> option consists of configuration entries that allow you to improve your system performance, or let you set up some system features according to your preference. System BootUp Sequence The option determines where the system looks first for an operating system. Sys[...]

AR-B1474 User ¡¦ s Guide 6-4 Internal Cache Memory This option specifies the caching algorithm used for L1 internal cache memory. The settings are: Setting Description Disabled Neither L1 internal cache memory on the CPU or L2 secondary cache memory is enabled. WriteBack Use the write-back caching algorithm. WriteThru Use the write-through cachin[...]

AR-B1474 User ¡¦ s Guide 6-5 OnBoard FDC This option enables the floppy drive controller on the AR-B1474. OnBoard IDE This option Enabled/Disabled the use of the IDE controller on the AR-B1474. Parallel Port Address This option is used to select the port address and the IRQ of the on-board parallel port. The addresses are 378H, 278H, 3BCH, and Di[...]

AR-B1474 User ¡¦ s Guide 6-6 Parity Check This option enables or disables parity error checking for all system RAM. This option must be Disabled if the used DRAM SIMMs are 32-bit but not 36-bit devices. Slow Refresh This options sets the DRAM refresh cycle time. The settings are 15us, 30us, 60us, and 120us. Hidden Refresh Hidden refresh separates[...]

AR-B1474 User ¡¦ s Guide 6-7 6.6 AUTO-DETECT HARD DISKS This option detects the parameters of an IDE hard disk drive, and automatically enters them into the Standard CMOS Setup screen. 6.7 PASSWORD SETTING This BIOS Setup has an optional password feature. The system can be configured so that all users must enter a password every time the system b[...]

AR-B1474 User ¡¦ s Guide 6-8 6.9 BIOS EXIT This section is used to exit the BIOS main menu in two types situation. After making your changes, you can either save them or exit the BIOS menu and without saving the new values. 6.9.1 Save Settings and Exit This item set in the <Standard CMOS Setup>, <Advanced CMOS Setup>, <Advanced Chi[...]

AR-B1474 User ¡¦ s Guide 7-1 7. SPECIFICATIONS CPU: 25-100 MHz INTEL/AMD/CYRIX 80486DX/DX2/DX4 Bus Interface: ISA (PC-AT) Bus and PC/104 Bus Chipset: ALI M1429 and M1431 RAM Memory: 1MB to 32MB using 32-bit or 36-bit 72-pin SIMMs with access time of 70ns or less Shadow RAM: Up to 256KB in 32 KB blocks supports system and video BIOS Extended Memor[...]

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AR-B1474 User ¡¦ s Guide 8-1 8. PL ACEMENT & DIMENSIONS 8.1 PLACEMENT CN6 JP15 JP1 JP14 JP8 JP9 JP10 U17 U26 H16 JP3 H5 JP7 SW1 J5 P10 P8 P6 JP2 JP6 U13 J4 J3 P9 P7 P5 JP11 JP5 JP4 JP13 JP12 J2 J1 J6 J7 LED1 LED2 H19 H18 H4 J8 U18 U12 U8 CN3 DB2 CN1 CN2 H15 H7 H6 H14 CN5 U20 U27 CN4 1 SIMM1 DB1 U7 BUS1 BUS2 CN6[...]

AR-B1474 User ¡¦ s Guide 8-2 8.2 DIMENSIONS 85 100 1418 400 150 4800 700 150 300 294 6300 5500 1900 3200 620 100 525 200 200 200 1700 3000 3150 3190 2900 3290 7290 765 540 150 540 9−∅138 Unit: mil (1 inch = 25.4 mm = 1000 mil)[...]

AR-B1474 User ¡¦ s Guide 9-1 9. MEMORY BANKS & PROGRAMMING RS-485 9.1 USING MEMORY BANK This section provides the information about how to access the memory on the AR-B1474 without using the AR- B1474 SSD BIOS. The AR-B1474 hardware divides every 8K bytes of memory into a memory bank. To access the data in the memory, you have to assign the c[...]

AR-B1474 User ¡¦ s Guide 9-2 Example 1: Select the 10th bank of the MEM1 on the AR-B1474. The AR-B1474 is using 27C020 (256K*8), and the base port is &H210. 100 base_port=&H210 110 OUT base_port+0,&H59 Example 2: Select the 40th bank of MEM3 on the AR-B1474. The AR-B1474 is using 27C040 (512K*8), and the base port is &H390. 200 ba[...]

AR-B1474 User ¡¦ s Guide 9-3 (3) Send out one block data (Transmit – the data more than two characters) Step 1: Enable TXC signal, and the bit 0 of the address of offset+4 just sets “ 1 ” . Step 2: Send out the data. (Write all data to the offset+0 of the current COM port address) Step 3: Wait for the buffe r ’ s data empty. Check transmi[...]

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AR-B1474 User ¡¦ s Guide 10-1 10. SSD TYPES SUPPORTED & INDEX 10.1 SSD TYPES SUPPORTED The following list contains SRAMs supported by the AR-B1474: AKM AKM628128 (128Kx8, 1M bits) HITACHI HM628128 (128Kx8, 1M bits) NEC UPD431000A (128Kx8, 1M bits) SONY CXK581000P/M (128Kx8, 1M bits) HITACHI HM628512 (512Kx8, 4M bits) NEC UPD434000 (512Kx8, 4M[...]

AR-B1474 User ¡¦ s Guide 10-2 SGS-THOMSON M27C2001 (256Kx8, 2M bits) TI TMS27C020 (256Kx8, 2M bits) TOSHIBA TCS712000 (256Kx8, 2M bits) AMD Am27C040 (512Kx8, 4M bits) ATMEL AT27C040 (512Kx8, 4M bits) FUJITSU MBM27C4001 (512Kx8, 4M bits) HITACHI HN27C401 (512Kx8, 4M bits) INTEL D27C040 (512Kx8, 4M bits) MITSUBISHI M5M27C401 (512Kx8, 4M bits) NEC D[...]

AR-B1474 User ¡¦ s Guide 10-3 10.2 INDEX Name Function Page CN1 Hard disk (IDE) connector 3-3 CN2 FDD port connector 3-4 CN3 Parallel port connector 3-4 CN4 40-pin PC/104 connector bus C & D 3-5 CN5 6-pin mini DIN keyboard connector 3-10 CN6 64-pin PC/104 connector bus A & B 3-5 J1 HDD LED header 3-10 J2 Watchdog LED header 3-10 J3 Extern[...]