SOHARD SH ARC-66 Manual de usuario

Manual

SH ARC-66

ISA ARCNET card with COM90C66

Version 0 .00

SH ARC-66 Version 0 .00

Inhaltsverzeichnis

1. Introduction ..........................................................................................

2. Compatibility.........................................................................................

. Ports and Displays................................................................................4

.1 Coax.................................................................................................4

.2 Twisted Pair.....................................................................................4

. Node ID............................................................................................5

.4 Selection of Interfaces.....................................................................6

.5 Bus Termination...............................................................................6

.6 Red LED...........................................................................................7

.7 Green LED.......................................................................................7

.8 I/O Base Address.............................................................................8

.9 Memory Address..............................................................................8

.10 Interrupt..........................................................................................9

.11 Boot ROM....................................................................................10

4. Memory address space......................................................................10

5. Factory Settings..................................................................................11

6. Technical Data....................................................................................11

6.1 General..........................................................................................11

6.2 Coax Interface................................................................................11

6. TWP Interface................................................................................11

7. CE Declaration of Conformity ...........................................................12

8. Restriction of Hazardous Substances Directive (RoHS)...................1

9. Support...............................................................................................1

9.1 Contacts.........................................................................................1

10. Literature...........................................................................................1

11. Warranty...........................................................................................1

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1. Introduction

The SH ARC-66 is a 16 bit ARCNET card for computers with an ISA

bus. The card is conceived for the use in computers for office

communications as well as in industrial computers. Both alternatively

available interfaces, coax and TWP, ensure a maximum of flexibility.

By means of the attached software drivers, the card can be integrated

into your application fast and at moderate costs.

For the implementation in office communication systems, the standard

ARCNET driver of the corresponding operating system can be used.

2. Compatibility

The card is software-compatible to 8 bit ARCNET cards (with COM

90xx). Thus the SH ARC-66 can easily be used as a substitute for an

older ARCNET card. Having connected the card, it behaves like its 8 bit

predecessor. The card can only be switched into the 16 bit modus (see

[1]) by setting a further bit specifically – usually, this is already effected

by the 16 bit driver.

By activating the internal termination, the SH ARC-66 behaves like a

"star card" (low-impedance bus interface).

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3. Ports and Displays

3.1 Coax

Situated at the mounting bracket of the card, the coaxial port is provided

by a BNC-socket.

3.2 Twisted Pair

Two RJ45 sockets at the mounting bracket of the card represent it’s

TWP ports. Both sockets are completely equal. If the card is operated as

a bus card, the incoming line must be put into one of the RJ45 sockets

and the outgoing line into the other RJ45 socket. Only a RJ45 socket is

used in the star operation. The free socket remains free and the card is

terminated internally or an external termination (bus termination) is put

onto the free socket.

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Pin Bezeichnung

1 n.c.

2 n.c.

n.c.

4 Pulse 1

5 Pulse 2

6 n.c.

7 n.c.

8 n.c.

3.3 Node ID

Every ARCNET node within the network needs a ‘Node ID’, which is

assigned once – also called node number or station address. This is

adjusted by means of a DIP switch at the mounting bracket of the card.

The Node ID arises (see table) in accordance with the binary coding,

being apparent by the position of the eight switches included in the DIP

switch S1 (ON=0 / OFF=1).

Node ID 1 2 3 5 6 7 8

1 OFF ON ON ON ON ON ON ON

2 ON OFF ON ON ON ON ON ON

OFF OFF ON ON ON ON ON ON

4 ON ON OFF ON ON ON ON ON

5 OFF ON OFF ON ON ON ON ON

6 ON OFF OFF ON ON ON ON ON

7 OFF OFF OFF ON ON ON ON ON

8 ON ON ON OFF ON ON ON ON

9 OFF ON ON OFF ON ON ON ON

10 ON OFF ON OFF ON ON ON ON

11 OFF OFF ON OFF ON ON ON ON

12 ON ON OFF OFF ON ON ON ON

1 OFF ON OFF OFF ON ON ON ON

14 ON OFF OFF OFF ON ON ON ON

15 OFF OFF OFF OFF ON ON ON ON

16 ON ON ON ON OFF ON ON ON

...

254 ON OFF OFF OFF OFF OFF OFF OFF

255 OFF OFF OFF OFF OFF OFF OFF OFF

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The Node ID = 0, which is not permitted, has an additional feature. If all

the DIP switches are set to “ON”, the Node ID can be adjusted by the

software. Therefore, the card does not become active on part of the

network unless an initialization was carried out by the software.

3.4 Selection of Interfaces

There are two interfaces on the card which cannot be used

simultaneously so that a selection by means of jumpers is necessary.

The coax port is selected by setting the jumpers like the ones in the left

picture. The TWP port is selected by setting the jumpers like the ones in

the right picture.

Please also note the various terminations in the following chapter.

3.5 Bus Termination

Every network line must be terminated. If the SH ARC-66 forms the end

of a line, it has to be terminated there.

There are two ways of termination:

●externally: here the line termination is attached externally (as BNC

terminators).

●Internally: The card offers the possibility of internal termination.

The corresponding jumper on the card has to be set as shown

below.

We recommend the external termination. In both cases termination has

to be carried out according to the characteristic impedance of the cable

used (e.g. RG62=9 ohm)

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The internal jumper for the termination offers the possibility of

terminating with 9 ohm (left picture above) or with 120 ohm (right

picture above).

Type of cable Wellenwiderstand

coax 9 ohm

twisted pair e.g. 120 ohm

3. Red LED

The red LED will be active if the SH ARC-66 is accessed by the ISA bus.

These accesses become visible by prolonging the impulse lenght.

Status of the LED Description

Active Access to SH ARC-66

Dark There is no access (chip select) to the SH ARC-66

3.7 Green LED

The green LED indicates activities on the ARCNET bus.

Status of the LED Description

Active Network OK (Token revolves)

Flashing (short

“blinding out” 1sec)

Network tries to re-configure itself (reconfiguration).

However, no other node is found.

Dark Card does not have any supply voltage or

Node ID = 0 and card is not initialized

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3.8 I/O Base Address

The I/O base address of the ARCNET controller is set by means of a

DIP switch (S2) on the card. Switch position “ON” represents a low level

and switch position “OFF” represents a high level on the signal line.

The I/O base address must be still unused in the system.

I/O Base Address IOS0 IOS1 IOS2

0x260-0x26F ON ON ON

0x290-0x29F OFF ON ON

0x2E0-0x2EF ON OFF ON

0x2F0-0x2FF OFF OFF ON

0x 00-0x 0F ON ON OFF

0x 50-0x 5F OFF ON OFF

0x 80-0x 8F ON OFF OFF

0x E0-0x EF OFF OFF OFF

3.9 Memory Address

The Memory address of the ARCNET controller (Dual Ported RAM) is

set by means of a DIP switch (S2) on the card. Switch position ON

represents a low level and switch position OFF represents a high level

on the signal line.

The switch position also defines which memory area the boot ROM

superimposes..

The memory areas must be still unused in the system.

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MS0 MS1 MS2 MS3 MS ARCNET RAM BOOT ROM

ON ON ON ON ON C:0000-C:07FF C:2000-C: FFF

OFF ON ON ON ON C:0800-C:0FFF C:2000-C: FFF

ON OFF ON ON ON C:1000:-C:17FF C:2000-C: FFF

OFF OFF ON ON ON C:1800-C:1FFF C:2000-C: FFF

ON ON OFF ON ON C:4000-C:47FF C:6000-C:7FFF

OFF ON OFF ON ON C:4800-C:4FFF C:6000-C:7FFF

ON OFF OFF ON ON C:5000-C:57FF C:6000-C:7FFF

OFF OFF OFF ON ON C:5800-C:5FFF C:6000-C:7FFF

ON ON ON OFF ON C:C000-C:C7FF C:E000-C:FFFF

OFF ON ON OFF ON C:C800-C:CFFF C:E000-C:FFFF

ON OFF ON OFF ON C:D000-C:D7FF C:E000-C:FFFF

OFF OFF ON OFF ON C:D800-C:DFFF C:E000-C:FFFF

ON ON OFF OFF ON D:0000-D:07FF D:2000-D: FFF

OFF ON OFF OFF ON D:0800-D:0FFF D:2000-D: FFF

ON OFF OFF OFF ON D:1000-D:17FF D:2000-D: FFF

OFF OFF OFF OFF ON D:1800-D:1FFF D:2000-D: FFF

ON ON ON ON OFF D:4000-D:47FF D:6000-D:7FFF

OFF ON ON ON OFF D:4800-D:4FFF D:6000-D:7FFF

ON OFF ON ON OFF D:5000-D:5700 D:6000-D:7FFF

OFF OFF ON ON OFF D:5800-D:5FFF D:6000-D:7FFF

ON ON OFF ON OFF D:8000-D:87FF D:A000-D:BFFF

OFF ON OFF ON OFF D:8800-D:8FFF D:A000-D:BFFF

ON OFF OFF ON OFF D:9000-D:9700 D:A000-D:BFFF

OFF OFF OFF ON OFF D:9800-D:9FFF D:A000-D:BFFF

ON ON ON OFF OFF D:C000-D:C7FF D:E000-D:FFFF

OFF ON ON OFF OFF D:C800-D:CFFF D:E000-D:FFFF

ON OFF ON OFF OFF D:D000-D:D7FF D:E000-D:FFFF

OFF OFF ON OFF OFF D:D800-D:DFFF D:E000-D:FFFF

ON ON OFF OFF OFF E:0000-E:07FF E:2000-E: FFF

OFF ON OFF OFF OFF E:0800-E:0FFF E:2000-E: FFF

ON OFF OFF OFF OFF E:1000-E:17FF E:2000-E: FFF

OFF OFF OFF OFF OFF E:1800-E:1FFF E:2000-E: FFF

3.10 Interrupt

The interrupt, which shall be triggered by the card, can be selected with

the jumper panels JP1 and JP2.

The selected interrupt must not be occupied within the system and must

be assigned to the ISA bus by the motherboard BIOS.

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3.11 Boot ROM

The card can be equipped with a boot ROM (socket IC4). Therefore it is

possible to boot the computer via the network.

The jumper “ENROM” has to be plugged in. However, we recommend to

plug in the jumper even if no boot ROM is used.

The selected memory area of the boot ROM can be taken from the table

of chapter .8 "memory address."

. Memory address space

The ARCNET controller superimposes at 16 addresses in the I/O area

and occupies 2 kilobytes of the main memory (Memory) (see [1]).

IO-base address + Read register Write register

0 STATUS INTERRUPT MASK

1 DIAG. Status COMMAND

2 CONFIGURATION CONFIGURATION

I/O SELECT RESERVED

4 MEMORY SELECT RESERVED

5 NODE ID NODE ID

6 RESERVED RESERVED

7 RESERVED EXTERNAL REGISTER

8 RESET RESET

9 RESET RESET

A RESET RESET

B RESET RESET

C DATA LOW DATA LOW

D DATA HIGH DATA HIGH

E ADDRESS PTR LOW ADDRESS PTR LOW

F ADDRESS PTR HIGH ADDRESS PTR HIGH

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