AR-B1375/AR-B1376 User s Guide

6.3 JUMPER SETTING

Before installing the memory into memory sockets MEM1 through MEM3 (U31, U32 and U33 respectively), you have to configure the memory type which will be used (ROM/RAM) on the AR-B1375 and AR-B1376. Each socket is equipped with an jumper to select the memory type.

You can configure the AR-B1375 and AR-B1376 as a (FLASH) EPROM disk (ROM only), a SRAM disk (SRAM only) or a combination of (FLASH) EPROM and SRAM disk.

It is not necessary to insert memory chips into all of the sockets. The number of SRAM chips required depends on your RAM disk capacity. The number of EPROM chips required depends on the total size of files that you plan to copy onto the ROM disk and whether or not it will be bootable.

Insert the first memory chip into MEM1 if you are going to configure it as a ROM or SRAM disk. If you use a combination of ROM and RAM, then insert the (FLASH) EPROM chip starting with the MEM1, and insert the SRAM chips starting from the first socket which is configured as SRAM.

zM1:is used to configure the memory type of MEM1

zM2:is used to configure the memory type of MEM2

zM3:is used to configure the memory type of MEM3

CAUTION: When the power is turned off, please note the following precautions.

1.If your data has been stored in the SRAM disk, do not change the jumper position or data will be lost.

2.Make sure jumpers are set properly. If you mistakenly set the jumpers for SRAM and you have EPROM or FLASH installed, the EPROM or FLASH will drain the battery’s power.

1

2

3

1

2

3

1

2

3

1

2

3

A B C

JP4

1 2 3

1MX8 EPROM (Only)

M1~M3

A B C

JP4

1 2 3

EPROM (128KX8, 256KX8, 512KX8) 5V/12V FLASH (64KX8M 128KX8, 256KX8)

M1~M3 Factory Preset

A B C

JP4

1 2 3

5V FLASH (512KX8 only)

M1~M3

A B C

JP4

1 2 3 SRAM

M1~M3

Figure 6-3 M1~M3 & JP4: Memory Type Setting

6-5

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Toshiba AR-B1376, AR-B1375, 386SX manual Jumper Setting, M1~M3 & JP4 Memory Type Setting
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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.
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