AR-B1375/AR-B1376 User s Guide

2.4.1 I/O Port Address Map

Hex Range

Device

000-01F

DMA controller 1

020-021

Interrupt controller 1

022-023

ALI M6117

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

0C0-0DF

DMA controller 2

0F0

Clear Math Co-processor

0F1

Reset Math Co-processor

0F8-0FF

Math Co-processor

170-178

Fixed disk 1

1F0-1F8

Fixed disk 0

201

Game port

208-20A

EMS register 0

218-21A

EMS register 1

278-27F

Parallel printer port 2 (LPT 2)

2E8-2EF

Serial port 4 (COM 4)

2F8-2FF

Serial port 2 (COM 2)

300-31F

Prototype card/streaming type adapter

320-33F

LAN adapter

378-37F

Parallel printer port 1 (LPT 1)

380-38F

SDLC, bisynchronous

3A0-3AF

Bisynchronous

3B0-3BF

Monochrome display and printer port 3 (LPT 3)

3C0-3CF

EGA/VGA adapter

3D0-3DF

Color/graphics monitor adapter

3E8-3EF

Serial port 3 (COM 3)

3F0-3F7

Diskette controller

3F8-3FF

Serial port 1 (COM 1)

Table 2-2 I/O Port Address Map

2.4.2 I/O Channel Pin Assignment (Bus 1)

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

-12V

Power

A8

SD1

Input/Output

B8

-ZWS

Input

A9

SD0

Input/Output

B9

+12V

Power

A10

IOCHRDY

Input

B10

GND

Ground

A11

AEN

Output

B11

-SMEMW

Output

A12

SA19

Input/Output

B12

-SMEMR

Output

A13

SA18

Input/Output

B13

-IOW

Input/Output

A14

SA17

Input/Output

B14

-IOR

Input/Output

A15

SA16

Input/Output

B15

-DACK3

Output

A16

SA15

Input/Output

B16

DRQ3

Input

2-3

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Toshiba 386SX, AR-B1376, AR-B1375 manual 1 I/O Port Address Map, 2 I/O Channel Pin Assignment Bus, Hex Range Device

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.