AST CC-432 User manual

Data Communications Products
ASTCC-432
ASr
RESEAACH INC.
Communications Hard-
ware ProductProviding a
Synchronous Communica-
tions ChannelJ Normal
and NRZI Data Encoding
and Security for Custo;-
mizedSoftware

CC·432™
Advanced Communication Board
for the
IBM Personal Computer,
and IBM PC·XT
User's Manual
000140-001 D
October 1985
AST RESEARCH, INC.
Irvine, California
[phone]

Fourth Edition (October 1985)
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TABLE OF CONTENTS
SECTION 1 INTRODUCTION........................ 1-1
1.1 PC Compatibility .............................. 1-1
1.2 Modem Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.3 Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . 1-2
SECTION 2 CONFIGURATION ....... ............... 2-1
2.1 Factory Default Configuration ................... 2-2
2.2 Cable Information
............................. 2-2
2.3 Changing the Factory Default Configuration
....... 2-4
2.4 I/O Address and Function Selection
.............. 2-4
2.5 Port Configuration
............................ 2-7
2.6 Interrupt Line Selection
........................ 2-9
2.7 Baud Rate Selection
......................... 2-10
2.8 CC-432 Shorting Plug Summary ................ 2-10
2.9 Additional Control Signals
..................... 2-12
2.10 NRZI Encode/Decode ........................ 2-13
SECTION 3 INSTALLATION . ....................... 3-1
SECTION 4 PROBLEM DETERMINATION
PROCEDURES
.. ....................... 4-1
4.1 Finding the Problem .......................... 4-1
4.1.1 Modems ............................... 4-1
4.1.2 Software Parameters ..................... 4-2
4.1.3 Phone Lines
............................ 4-2
4.1.4
PC System Hardware .................... 4-2
4.2 Repair Procedure
............................. 4-3
SECTION 5 THE C432TEST DIAGNOSTIC ............ 5-1
5.1 Hardware Requirements ....................... 5-1
5.2 Software Requirements ........................ 5-2
5.3 Setup ...................................... 5-2
5.3.1 CC-432 Board Setup
..................... 5-2
5.3.2 Loopback Plug Configuration
.............. 5-4
5.3.3 Install the Modem or Loopback Plug
........ 5-4
5.4 Diagnostic Operation
.......................... 5-4
iii

TABLE OF CONTENTS
(Continued)
5.5 Test Descriptions ............................. 5-6
5.5.1 SIO Register Write/Read Test
.............. 5-6
5.5.2 SIO Interrupt Test
....................... 5-7
5.5.3 SDLC Loopback Test.
.................... 5-7
5.6 Error Messages
.............................. 5-7
APPENDICES
APPENDIX A 110 ADDRESS MAP .................... A-1
APPENDIX B HARDWARE INTERRUPT LINES ......... B-1
FIGURES
Figure 2-1. CC-432 Board Layout .................... 2-6
Figure 3-1. Turn
PC Power OFF (rear view) ............ 3-2
Figure 3-2. Remove
PC Cover ....................... 3-3
Figure 3-3. IBM Expansion Slots
..................... 3-4
Figure 3-4. Install Your CC-432 Board
................. 3-5
Figure 3-5. Install Cables
........................... 3-6
TABLES
Table 2-1. CC-432 (DTE mode) and
Modem Configuration
..................... 2-3
Table 2-2. CC-432 110 Address Select ................. 2-5
Table 2-3. CC-432
AO-A3 Function Select .............. 2-7
Table 2-4. DTE and DCE Configurations
............... 2-8
Table 2-5. SIO Data and Modem Control Signals
........ 2-8
Table 2-6. Interrupt Line Selection
.................... 2-9
Table 2-7. CC-432 Shorting Plug
(Positions 1-9) Summary .................. 2-10
iv

SECTION 1
INTRODUCTION
This manual tells you how to configure, install, and run the
diagnostic for the AST Research, Inc., CC-432 Advanced
Communication board. The CC-432 board allows you to
configure its single-channel communications port
as DTE
(Data Terminal Equipment, the equipment associated with a
user) or DCE (Data Communications Equipment, the
equipment associated with the transmission facilities). The
CC-432 board performs all serial-to-parallel and parallel-to-
serial conversions
in synchronous mode, and offers a choice
of normal or Non Return to Zero Inverting (NRZI) data
encoding.
The combination of the CC-432 board and AST Research
communications packages provides convenience and cost
saving by allowing you to support a variety of terminal
emulation and communications protocols. To use a different
type of emulation or communication capability, simply change
diskettes and boot another AST Research communications
program.
The communication element
on the AST Research CC-432
board is its dual port Serial Input/Output (SIO) chip. The
functions available on the SIO include modem control signals
and CRC (Cyclic Redundancy Check) error checking.
1.1 PC Compatibility
The AST Research CC-432 Advanced Communication board
is completely compatible with the IBM
PC and PC-XT.
1-1

1.2 Modem Compatibility
The CC-432 board and its various associated AST Research
software packages are designed for use with Bell-compatible
synchronous modems. A Bell-compatible modem usually has
a model number that corresponds to the Bell standard it
complies with, and different model numbers operate at
different baud rates (for example, 212 = 1200 baud,
201 = 2400 baud, and 208 = 4800 baud).
You can use other modems as long as the modems at both
ends of the phone line are compatible with each other. The
modem that you use must also
be compatible with the
modem at the host (the host is the machine that you are
communicating to). For example, if you use
an IBM modem at
a host computer, you must use
an IBM modem at an IBM PC
at the other end of the phone line. An IBM modem will not
communicate with a Bell-compatible modem.
All AST Research emulation package line protocols require
synchronous modems. Asynchronous modems (such
as the
Hayes and Novation modems) will not work with AST
Research emulation packages.
1.3 Related Documentation
This manual assumes some familiarity with the PC-DOS
operating system and the PC hardware. This information can
be found in the following manuals:
IBM Personal Computer Guide to Operations manual
IBM Personal Computer Technical Reference manual
IBM Personal Computer Disk Operating System manual
1-2

The communication element of the AST Research CC-432
Advanced Communication board is the 510 (such as the Zilog
Z-80 510-0 or the MOSTEK MK3884). Programming and
vector interpretation of the 510 are detailed in
an 510
reference manual such as:
Zilog Z-80 SID Technical Manual
or
MOSTEK MK38841517 Serial 110 Controller Technical Manual
1-3

1-4

SECTION 2
CONFIGURATION
If your CC-432 board is part of a complete AST Research
hardware/software package,and you intend to communicate
with a host computer via a modem/phone line link, it
-is
probably ready to use in its factory default configuration.
NOTE
If you are using the AST-3780 package, the
CC-432 board is ready to use as is (verify
the factory configuration below). If you are
using the AST-5251, AST-SNA, or AST-BSC
communications packages, the only change
you have to make to the factory
configuration is to remove the shorting plug
from pOSition 8.
Otherwise, you must configure the AST Research CC-432
Advanced Communication board to select its IBM PC I/O
addresses, interrupt line, baud rate, and to configure its
communications port as DCE or DTE (default is DTE). You
can also configure your CC-432 to take advantage of
additional control signals, and to support the Non Return to
Zero Inverting (NRZI) data encoding that is commonly used
with some synchronous protocols (default is non-NRZI).
This section describes how to set the DIP switch, shunts, and
shorting plugs for your application, and is intended primarily
for those users who want to create their own custom software
for the CC-432. If you are using the CC-432
as part of a
complete AST Research communications package, this
information is useful
as a reference. Your AST Research
communications package user's manual tells you how to
configure your CC-432 board for your application.
2-1