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Book Number: AR-B1474-99.B01
Edition: 3.1
s Guide Use
486DX/DX2/DX4 CPU CARD
INDUSTRIAL GRADE
AR-B1474
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¡¦ 0. ................................ ................................ ................................ ................................ ....................... 0-3 COPYRIGHT NOTICE AND DISCLAIMER WELCOME TO THE AR-B1474 SERIAL CPU BOARD BEFORE YOU USE THIS GUIDE RETURNING YOUR BOARD FOR SERVICE TECHNICAL SUPPORT AND USER COMMENTS ORGANIZATION STATIC ELECTRICITY PRECAUTIONS 1. ................................ ................................ ................................ ....................
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¡¦ ROM DISK INSTALL ATION UV EPROM (27Cxxx) Large Page 5V FLASH Disk Small Page 5V FLASH ROM Disk RAM Disk Combination of ROM and RAM Disk INSTALLATION D.O Hardware Setting Software Se tting 6. ................................ ................................ ................................ ................................ ............. 6-1 BIOS SETUP OVERVIEW STANDARD CMOS SETUP ADVANCED CMOS SETUP ADVANCED CHIPSET SETUP POWER MANAGEMENT AUTO-DETECT HARD DISKS PASSWORD SETTING Setting Password
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¡¦ 0. 0.1 disclaims any implied warranties of merchantability or fitness for any particular purpose. Furthermore, Acrosser Technology reserves the right to revise this publication and to make changes from time to time in the contents Possession, use, or copying of the software described in this publication is authorized only pursuant to a valid into any language or computer language, in any form or any means, electronic, mechanical, magnetic, optical, … a r e . 0.2 WELCOME TO THE d ’ 0.3 If yo
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¡¦ 0.6 l “ ” l “ ” l “ ” l “ ” l “ ” ’ l “ ” l l l l 0.7 Static electricity is a constant danger to computer systems. The charge that can build up in your body may be more than sufficient to damage integrated circuits on any PC board. It is, therefore, important to observe basic precautions whenever you use or handle computer components. Although areas with humid climates are much • Touch a grounded metal object to discharge the static electricity in your body (or ideally, wear a grounded •
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¡¦ 1. OVERVIEW l l l 1.1 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 memory for the AR-B1474 can be configured from 1MB to 32MB by The 8 layers PCB CPU card is equipped with a IDE HDD interface, a floppy disk drive adapter, 1 parallel port, 2 serial ports, a watchdog timer and a solid state disk. Its dimensions are as compact as 122mm x 185mm. It ’ s highly condensed features make i
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¡¦ 1.2 PACKING LIST l l l l l l l l l 1.3 l l l l l l l l l l l l l l l l 1-2 8 layers PCB On-board build-in buzzer Up to 3MB solid state disk (SSD) Programmable watchdog timer DS12887 or compatible RTC 2 serial ports with 16C550 UART Bi-direction parallel interface Floppy disk drive interface IDE hard disk drive interface Legal AMI BIOS Support shadow memory and EMS Support up to 32MB DRAM on-board Support 128KB to 512KB second level cache on-board Support ISA bus and P
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¡¦ 2. l l l l l 2.1 DMA CONTROLLER The equivalent of two 8237A DMA controllers are implemented in the AR-B1474 card. Each controller is a four- channel DMA device that will generate the memory addresses and control signals necessary to transfer information directly between a transfer with less 2 - 1 2.2 The 8042 processor is programmed to support the serial keyboard serial interface. The keyboard controller byte data in its output buffer. The controller can interrupt the system when dat
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¡¦ 2.3 INTERRUPT CONTROLLER The equivalent of two 8259 Programmable Interrupt Controllers (PIC) are included on the AR-B1474 card. They CPU, and provide vectors which are used as acceptance indices by the CPU to determine which interrupt service CTRL2 CTRL1 System timer interrupt from timer 8254 Keyboard output buffer full IRQ8 : Real time clock IRQ15 : Spare (Watchdog Timer) Parallel port 2 Parallel port 1 2 - 1 2-2 Interrupt Controller Figure IRQ 7 IRQ 6 Floppy disk adapter IRQ 5 Serial
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¡¦ 2.3.1 I/O Port Address Map 2 - 2 2-3 I/O Port Address Map Table Serial port 1 (COM 1) 3F8-3FF Diskette controller 3F0-3F7 Serial port 3 (COM 3) 3E8-3EF Color/graphics monitor adapter 3D0-3DF EGA/VGA adapter 3C0-3CF Monochrome display and printer port 1 (LPT 1) 3B0-3BF Bisynchronous 1 3A0-3AF Watchdog 394-395 SSD 390-393 SDLC, bisynchronous 2 380-38F Parallel printer port 2 (LPT 2) 378-37F Watchdog 314-315 SSD 310-313 Serial port 2 (COM 2) 2F8-2FF Serial port 4 (COM 4) 2E8-2EF Watchdog 294-2
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¡¦ 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 maintained for long period of time using an internal Lithium battery. The contents of each byte in the CMOS RAM 2 - 3 2.3.3 2-4 Application programs can load different counts into this timer to generate various sound frequencies. T
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¡¦ 2.3.4 ISA Bus Pin Assignment I/O Pin Signal Name Input/Output I/O Pin Signal Name Input/Output -IOCHCK GND Input/Output RSTDRV Input/Output Input/Output Input/Output Input/Output DRQ2 Input/Output Input/Output -ZWS Input/Output +12V IOCHRDY GND AEN -SMEMW SA19 Input/Output -SMEMR SA18 Input/Output -IOW Input/Output SA17 Input/Output -IOR Input/Output SA16 Input/Output -DACK3 SA15 Input/Output DRQ3 SA14 Input/Output -DACK1 SA13 Input/Output DRQ1 SA12 Input/Output -REFRESH Input/Output SA11 Inp
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¡¦ 2.3.5 ISA Bus Signal 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 The System Address lines run from bit 0 to 19. They are [Input / Output] latched onto the falling edge of "BALE" LA17 - LA23 The Unlatched Address line run from bit 17 to 23 [Input/Output] SD0 - SD15 System Data bit 0 to 15 [Input/Output] BALE [Output] The Buffered Address
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¡¦ -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 The Memory Chip Select 16 indicates that the present [Input, Open data transfer is a 1-wait state, 16-bit data memory operation -IOCS16 The I/O Chip Select 16 indicates that the present data [Input, Open transfer is a 1-wait state, 16-bit data I/O operation [Output] The Oscill
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¡¦ “ 0 ” 0 0 5 Bits 0 1 6 Bits 1 0 7 Bits 1 1 8 Bits 2-8 Bit 7: Must be 0 Bit 6: Transmitter Shift Register Empty (TSRE) Bit 5: Transmitter Holding Register Empty (THRE) Bit 4: Break Interrupt (BI) Bit 3: Framing Error (FE) Bit 2: Parity Error (PE) Bit 1: Overrun Error (OR) Bit 0: Data Ready (DR) (7) Line Status Register (LSR) Bit 7: Must be 0 Bit 6: Must be 0 Bit 5: Must be 0 Bit 4: Loop Bit 3: Out 2 (OUT 2) Bit 2: Out 1 (OUT 1) Bit 1: Request to Send (RTS) Bit 0: Data Terminal Ready (DTR) (6)
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¡¦ MS Bit 0 Bit 8 Bit 1 Bit 9 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 8 6 4 3 2 1 2 - 8 2.5 PARALLEL PORT 2 - 9 ’ The parallel portion of the SMC37C669 makes the attachment of various devices that accept eight bits of parallel 2-9 data at standard TTL level. (2) Printer Interface Logic Address Registers Table Printer control latch Write base + 2 Printer status buffer Read base + 1 Input data Read base + 0 Output data Write base + 0 Register Read/Write Port Address (1) Register Address Serial Po
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¡¦ ’ 7 6 5 4 3 2 1 0 X X X 2 - 2 This signal may become active during data entry, when the printer is off-line during printing, or when the print head is changing position or in an error state. When Bit 7 is active, the printer is busy and can not This bit represents the current state of the printer ’ s ACK signal. A 0 means the printer has received the character and is ready to accept another. Normally, this signal will be active for approximately 5 The system microprocessor can read the con
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CN6 ¡¦ 3. ’ l l 3.1 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 memory for the AR-B1474 can be configured from 1MB to 32MB by 1 3 - 1 3-1 AR-B1474 Placement Figure H19 H18 H16 CN5 BUS2 BUS1 JP13 JP12 H15 H14 J8 CN4 JP11 CN6 U20 J7 U27 U26 DB2 JP10 P10 JP9 P9 U18 U17 JP8 J6 JP7 JP6 P8 U12 P7 DB1 U13 SIMM1 JP5 U7 P6 P5 U8 JP4 JP3 J5 H6 H7 JP2 SW1 JP1 JP14 LED2 LED1 JP15 H4 H5 J4 J3 J2
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¡¦ 3.2 (A jumper block is a small plastic-encased conductor that slips over the pins.) the jumper from its current location with your fingers or small needle-nosed pliers. Place the jumper over the two Do not touch any electronic component unless you are safely grounded. Wear a grounded wrist strap 3.2.1 (1) JP3 -- COM-A 1 1 2 2 3 3 3 - 2 JP11 -- COM-B 1 2 3 1 2 3 3 - 3 t — COM-B type 9-pin male connectors (DB1 & DB2). If you want to configure the serial port, please refer to the BIOS
