ICD_Multi_IO_Board_Manual_Rev_5_20_1987.pdf

Multi I/O

Board

Manual

(Rev 5/20/1987)

Page 1

Preface 4

CHAPTER 1 — INTRODUCTION TO THE MIO .......................................................................................... 4

G ENERAL F UNCTIONS .................................................................................................................. 4

P ARALLEL P ORT ........................................................................................................................... 4

S ERIAL P ORT ................................................................................................................................4

RAM ........................................................................................................................................... 5

SCSI/SASI I NTERFACE ................................................................................................................ 5

ROM ........................................................................................................................................... 5

CHAPTER 2 — GENERAL INSTALLATION AND POWER UP ................................................................... 6

130XE A DAPTER B OARD ............................................................................................................. 6

P ARALLEL P RINTER C ONNECTIONS .............................................................................................. 6

MODEM C ONNECTIONS ............................................................................................................. 7

S ERIAL P RINTER C ONNECTIONS ................................................................................................... 7

SCSI/SASI C ONNECTIONS ........................................................................................................... 7

H ARD D RIVE I NTERFACE TO C ONTROLLER .................................................................................. 9

80 C OLUMN V IDEO I NTERFACE .................................................................................................. 10

P OWER - UP S EQUENCE ................................................................................................................ 10

CHAPTER 3 — SOFTWARE CONFIGURATION ...................................................................................... 11

S ELECTING S UB -M ENUS ............................................................................................................ 11

D RIVE C ONFIGURATION ............................................................................................................. 12

N – Drive Number ................................................................................................................. 12

T – Drive Type ...................................................................................................................... 12

S – Swap Drives .................................................................................................................... 12

L – Write Lock....................................................................................................................... 12

P RINTER C ONFIGURATION ......................................................................................................... 13

P – Pause/Resume................................................................................................................. 13

C – Clear Spooler ................................................................................................................. 13

R – Repeat Copies ................................................................................................................. 13

T – Set Port Type................................................................................................................... 13

S – Spooler Size..................................................................................................................... 13

N – Port Number ................................................................................................................... 13

RS-232 C ONFIGURATION ........................................................................................................... 13

B – Baud Rate ....................................................................................................................... 14

S – Stop Bits .......................................................................................................................... 14

P – Parity Mode .................................................................................................................... 14

A – Port Assign ..................................................................................................................... 14

S AVE C ONFIGURATION .............................................................................................................. 14

U SING S PARTA DOS ................................................................................................................... 14

U SING O THER DOS T YPES ......................................................................................................... 14

U SING B OOT D ISKS .................................................................................................................... 14

CHAPTER 4 — SETTING UP A HARD DISK ............................................................................................ 15

H ARDWARE C ONSIDERATIONS ................................................................................................... 16

C ONTROLLERS NOT SUPPORTED WITH FORMAT ROUTINES .......................................................... 16

I NITIALIZATION S EQUENCE IF U SING S PARTA DOS ON YOUR HARD DRIVE ................................. 16

I NITIALIZATION S EQUENCE IF U SING M Y DOS ON YOUR HARD DRIVE . ...................................... 17

F ORMATTING Y OUR H ARD D ISK — M ORE C OMPLETE D ETAILS ................................................ 17

System Configuration............................................................................................................17

Page 2

Device ID .............................................................................................................................. 17

Logical Unit Number ............................................................................................................ 17

Heads and Cylinders.............................................................................................................17

Format (HDFMTPH.COM) .................................................................................................. 17

Partitioning ........................................................................................................................... 18

Directory Build (HDFMTDIR.COM) ................................................................................... 18

CHAPTER 5 — MIO HARDWARE CONFIGURATION .............................................................................. 18

H ARDWARE D ESCRIPTION .......................................................................................................... 18

ACIA O PERATION ..................................................................................................................... 18

SASI/SCSI I NTERFACE .............................................................................................................. 19

P RINTER I NTERFACE .................................................................................................................. 19

A DDRESSING THE RAM ............................................................................................................. 21

C HECKING IRQ S TATUS ............................................................................................................. 21

A CCESSING THE ROM ............................................................................................................... 22

S OFTWARE D ESCRIPTION ........................................................................................................... 22

CHAPTER 6 — RS-232 HANDLER FUNCTIONS AND TABLES .............................................................. 25

O PENING THE RS-232 P ORT ....................................................................................................... 25

C LOSING THE RS-232 P ORT ....................................................................................................... 25

I NPUT C HARACTER OR L INE F ROM THE RS-232 P ORT ............................................................... 25

O UTPUT C HARACTER OR L INE T O THE RS-232 P ORT ................................................................ 26

R EADING THE P ORT S TATUS ...................................................................................................... 26

F ORCING E ARLY T RANSMISSION OF O UTPUT B LOCKS ............................................................... 27

C ONTROLLING O UTGOING L INES DTR, RTS, AND XMT........................................................... 27

S ETTING B AUD R ATE , S TOP B ITS , AND R EADY C HECKING ........................................................ 28

S ETTING T RANSLATION M ODES AND P ARITY ............................................................................ 28

S ETTING C ONCURRENT M ODE ................................................................................................... 29

APPENDIX A — OTHER ICD PRODUCT OFFERINGS ............................................................................ 30

APPENDIX B — STANDARD PRINTER & MODEM CABLES................................................................... 33

P RINTER C ABLE C ONNECTIONS ................................................................................................. 33

MODEM C ABLE C ONNECTIONS ................................................................................................ 33

DTE S ERIAL P RINTER C ABLE C ONNECTIONS ............................................................................. 34

N ULL MODEM C ABLE C ONNECTIONS ...................................................................................... 34

APPENDIX C — COMPATIBILITY ............................................................................................................. 35

APPENDIX D — HARD DRIVE DATA........................................................................................................ 35

APPENDIX E — POSSIBLE ERRORS USING THE MIO .......................................................................... 37

Page 3

Preface

Why do we keep developing new products for the 8-bit Atari computers you ask? The easy answers

are that we like what we are doing, we still have many positive ideas to contribute to the 8-bit Atari

world, and developing these products from concept through production is really exciting! While those

are partially the reasons, the true answer is that more Atari users are buying our products than ever

before!

The ICD Multi I/O board (MIO) is a cumulation of all the great ideas you have asked us to develop.

(Yes we do look at your suggestions.) It plugs into the parallel bus of the 800XL or the 130XE (with

adapter) and provides: a RAMDISK, a printer port, a MODEM port, a printer buffer, a flexible hard

disk interface, and built in configurations software to control it all. An optional 'hardware' 80 column

adapter is also available. About the only other thing you could want is a floppy interface. With the

hard drive and large RAMDISK it would be an unnecessary added expense. Most users already

have one SIO floppy drive and even that will get little use after using the MIO.

When you fill out your warranty/update card you will also be added to our newsletter mailing list. This

will keep you up to date on new products and developments as well as providing general information

about our company and our full product line. MODEM users may also want to try out our informative

ICD BBS. It is online 24 hours a day running 300/1200/2400 baud at (815) 968-2229. There are no

charges for this service other than the standard long distance phone rates.

Chapter 1 — Introduction to the MIO

General Functions

The ICD Multi I/O board (MIO) is a complex peripheral device which adds exceptional power to the

Atari 800XL or 130XE computer. The MIO gives the user five additional hardware functions not

available with a stock 8-bit Atari computer. These are: a parallel printer interface, a serial interface for

printer or MODEM, a printer buffer, a bootable RAMDISK, and an SCSI/SASI interface for hard disk

drives. An optional sixth function (80 column board) may be added at a later date.

Parallel Port

This is a "centronics" type parallel port for connection to printers. The hardware connection uses a 15

pin sub D connector like the P:R: Connection or Atari 850 interface. All the pin connections are the

same so the inexpensive P:R: Connection/850 cables will work to connect to your printer. See

Chapter 2 and Appendix B for the complete pinout and connection diagram.

Serial Port

The serial port is an RS-232 type port for connection to serial printers, MODEMs or other computers.

It uses a 9 pin sub D connector with the same pinouts as port 1 of the P:R: Connection or Atari 850

interface. See Chapter 2 and Appendix B for the complete pinout and connection diagram. The "R:"

handler (in ROM) is equivalent to the P:R: Connection in compatibility, however, no memory inside

your computer is used for the handler (since the "R:" handler is built into the ROM on the MIO). See

Appendix C for complete compatibility information. You may also use the serial port to control a serial

printer. Full XON/XOFF software handshake protocol and READY/BUSY hardware handshake

Page 4

protocol is supported through the "P:" handler on this port.

RAM

The RAM is available for use as RAMDISKs and/or a printer spooler (commonly called a printer

buffer). Since the MIO has its own power supply and refresh oscillator, memory is retained even after

powering down the computer. This unique feature along with drive swapping allows rebooting the

computer directly from RAMDISK!

The MIO is available in 256K or 1 Meg versions. The RAM chips are not socketed and are a very

special variety. The 256K versions are not user upgradeable! They may be upgraded by sending the

MIO along with the correct upgrade fee to ICD's service department. (Call for current prices.) Any

user modification attempts will void all warranties and result in additional service fees.

SCSI/SASI Interface

The SCSI/SASI interface allows the use of standard SCSI and SASI devices. These include hard disk

drives, tape backup units, and whatever else is available with these protocols. Chapter 2 lists many of

the current devices supported by this interface and the current software.

ROM

The ROM (16K bytes) in the MIO contains all the control software for the various features of the MIO.

The built in MENU program is accessed by holding down the SELECT key while booting or by holding

down SELECT and pressing RESET. Since the MENU loads into the computer's main memory

(RAM), this action destroys the previous contents of program memory (computer RAM not the MIO

RAM). To return to DOS (or cartridge) press RESET or '0'.

The MENU allows setting the configuration for your particular application and saving new default

parameters to hard drive #0,0. This includes: assigning drives, partitioning them, setting the printer

buffer, assigning ports, and selecting the R: handler if desired. One of the benefits of the MIO and the

parallel bus is that the various handlers are MIO resident and do not need to load into machine

memory as required by serial bus devices. This saves valuable memory since MEMLO remains

unchanged.

Page 5

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