Toshiba 386SX, AR-B1376 manual Reset Header J1, RS-232 Connector CN7 & DB2, HDD LED Header J8

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AR-B1375/AR-B1376 User s Guide

(5) RS-232 Connector (CN7 & DB2)

There are two serial ports with EIA RS-232 interface on the AR-B1375 or AR-B1376. COM A uses one on-board D-type 9-pin male connector (DB2) which is located at the right side of the card, and COM B uses one 10-pin header (CN7) which is located at the upper of the card. To configure these two serial ports, use the BIOS Setup program to do well, and adjust the jumpers on J6 and J7.

The pin assignments of the DB2 and CN7 for serial port A & B are as follows:

DB2 (COM A)

 

 

 

 

CN7 (COM B)

 

GND 5

9-RI

 

 

1

 

-DTR 4

 

 

2

 

8-CTS

 

 

 

TXD 3

 

 

 

 

7-RTS

 

 

 

 

RXD 2

 

 

 

 

6-DSR

 

 

 

 

-DCD 1

 

 

 

 

 

 

 

 

 

Figure 3-15 CN7 & DB2: RS-232 Connector

 

 

 

 

 

 

CN7

DB2

Signal

CN7

DB2

Signal

1

1

-DCD

2

6

-DSR

3

2

RXD

4

7

-RTS

5

3

TXD

6

8

-CTS

7

4

-DTR

8

9

-RI

9

5

GND

10

--

Not Used

Table 3-2 Serial Port Pin Assignment

3.2.7 Reset Header (J1)

J1 is used to connect to an external reset switch. Shorting these two pins will reset the system.

1 Reset+

2 Reset-

Figure 3-16 J1: Reset Header

3.2.8 LED Header

(1) External Power LED Header (J2)

 

 

 

1

Power LED+

 

 

 

2

No Connect

1

2

3

3

Power LED-

 

 

Figure 3-17 J2: External Power LED Header

(2) HDD LED Header (J8)

1LED+

2LED-

Figure 3-18 J8: HDD LED Header

3-8

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Contents 386SX CPU Card Page Table of Contents Using Memory Banks Placement & Dimensions Bios ConsoleSpecifications & SSD Types Supported Programming RS-485 & IndexPreface Static Electricity Precautions OrganizationPacking List OverviewIntroduction Features DMA Controller System ControllerMicroprocessor DMA ControllerKeyboard Controller Interrupt ControllerHex Range Device 1 I/O Port Address Map2 I/O Channel Pin Assignment Bus I/O Port Address MapI/O Channel Pin Assignments Address Description TimerREAL-TIME Clock and NON-VOLATILE RAM Real-Time Clock & Non-Volatile RAMReceiver Buffer Register RBR Interrupt Enable Register IERSerial Port Transmitter Holding Register THRLine Status Register LSR Line Control Register LCRModem Control Register MCR Modem Status Register MSRRegister Address Parallel PortDivisor Latch LS, MS Printer Interface LogicPrinter Control Latch & Printer Control Swapper Error Slct PE -ACK -BUSYPrinter Status Buffer Page Setting UP the System OverviewPin Mini DIN Keyboard Connector CN3 System SettingKeyboard Connector AUX. Keyboard Connector J4Pin PC/104 Connector Bus a & B CN2 2 PC/104 ConnectorPin PC/104 Connector Bus C & D CN1 O Channel Signal Description Name DescriptionPin Signal Hard Disk IDE Connector CN4I/O Channel Signal’s Description HDD Pin AssignmentCN6 FDD Port Connector CN5Parallel Port Connector CN6 RS-485 Terminator JP7 Serial PortRS-232/RS-485 Select for COM-B JP2 External RS-485 Adapter Select J6 & J7External Power LED Header J2 Reset Header J1RS-232 Connector CN7 & DB2 LED HeaderBattery Charger Select JP3 Power Connector J3External Battery External Speaker Header J5CPU Base Clock Select JP1 Dram ConfigurationExternal Battery Connector J11 SIMM1 SIMM2CRT/LCD Flat Panel Display Connecting the CRT MonitorVGA Setting JP5 IRQ 9 Used SelectCRT Connector DB1 LCD Flat Panel DisplayLCD Control Connector CN9 LCD ConnectorDE/E Signal from M or LP Select JP6 JP6 Inverter Board DescriptionLCD Display Assignment LCD Panel Display Connector CN8Supported LCD Panel Manufacture Model No DescriptionInstallation Utility DisketteWIN 95 Driver VGA DriverWIN 3.1 Driver StepSSD Utility RFG.EXE Write Protect Function RFGDEMO.PGFHardware Write Protect Enable the Software Write ProtectDisable the Software Write Protect Software Write ProtectTime-Out Setting Watchdog TimerWatchdog Timer Setting LEDWatchdog Timer Disabled Watchdog Timer EnabledWatchdog Timer Trigger Switch Setting Solid State DiskSSD Firmware Address Select SW1-2 Overview2 I/O Port Address Select SW1-1 DEVICE=C\DOS\EMM386.EXE X=C800-C9FFFlash Eprom Sram SSD Drive Number SW1-3 & SW1-4Simulate 2 Disk Drive ROM Type Select SW1-5 & SW1-6 Disk Drive Name ArrangementJumper Setting M1~M3 & JP4 Memory Type SettingUV Eprom 27Cxxx ROM Disk InstallationSwitch and Jumper Setting JP4 Large Page 5V Flash DiskSoftware Programming \PGM137X ROM pattern file name Using Tool Program Small Page 5V Flash ROM DiskTyping DOS Command RAM DiskCombination of ROM and RAM Disk \FORMAT RAM disk letter /UPage Bios Console Bios Setup OverviewFloppy Setup Standard Cmos SetupDate & Time Setup Hard Disk SetupAdvanced Cmos Setup Hard Disk Delay Password CheckWait for ‘F1’ If Error System KeyboardAdvanced Chipset Setup Password Checking Password SettingSetting Password Load Default SettingSave Settings and Exit Auto Configuration with Fail Safe SettingBios Exit Bios UpdateFile of AMIFLASH.EXE had to Version SSD Types Supported Specifications & SSD Types SupportedSpecifications Winbond AtmelSST FujitshuCS1 CS0 Using Memory BanksRegister Port SocketPage Placement & Dimensions PlacementDimensions Initialize COM port Programming RS-485 & IndexProgramming RS-485 Send out one character TransmitOUT &H3FC, INP&H3FC and &HEF Return OUT &H3FC, INP%H3FC and &HFA ReturnPrint #1, OUTCHR$ INPSTR$ ReturnName Function

386SX, AR-B1376, AR-B1375 specifications

The Toshiba AR-B1375 and AR-B1376 are notable embedded computing solutions that incorporate the 386SX microprocessor architecture. Designed for various applications, these models focus on reliability, performance, and versatility, making them appealing choices for system integrators and developers.

At the core of the AR-B1375 and AR-B1376 is the Intel 386SX microprocessor. This landmark processor marked a significant advancement in computing technology, introducing a 32-bit architecture while maintaining compatibility with 16-bit applications. The 386SX is known for its efficient processing capabilities, offering both multitasking support and enhanced memory management. It operates at clock speeds ranging typically from 16 MHz to 25 MHz, contributing to its effectiveness in running industrial applications.

One of the key features of the AR-B1375 and AR-B1376 systems is their modular architecture, which allows for easy customization and expansion. This modularity means users can tailor the hardware according to specific requirements, making it suitable for a wide range of applications such as automation, telecommunications, and embedded systems.

Both models support various I/O options, ensuring seamless integration with peripherals and external devices. They typically come equipped with serial and parallel ports, as well as support for modern interfaces like USB. The systems also feature onboard expansion slots, enabling the addition of further functionality, such as additional memory or specialized processing units.

In terms of memory, the AR-B1375 and AR-B1376 support a range of RAM configurations, allowing users to scale their systems based on the application demands. The inclusion of EPROM and EEPROM options also facilitates easy updates and programmability, which is crucial for embedded systems that often require firmware adjustments over time.

Moreover, these models are known for their robust thermal management features, which are essential in industrial environments where conditions can be harsh. This capability ensures stable performance and longevity, reducing the risk of system failures due to overheating or environmental factors.

To summarize, the Toshiba AR-B1375 and AR-B1376, coupled with the 386SX microprocessor, offer a blend of performance, flexibility, and reliability. Their modular design, extensive I/O support, and memory scalability make them ideal for a variety of embedded computing applications, placing them as commendable options in the world of industrial computing solutions. These systems not only exemplify Toshiba's commitment to innovation but also contribute significantly to the functionality of embedded technologies in a rapidly evolving industry.