Quatech DS-1000 Owner's Manual

Dual channel rs-232 asynchronous communications board

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Q u a T e c h I n c . w a r r a n t s t h e
defects for
o n e ( 1 ) y e a r
T e c h
I n c .
w i l l
p e r f o r m u n d e r n o r m a l o p e r a t i n g c o n d i t i o n s a n d i n a c c o r d a n c e
w i t h
t h e
p r o c e d u r e s
w a r r a n t y
p e r i o d .
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Please complete the following information and retain for
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DATE OF PURCHASE:
MODEL NUMBER:
PRODUCT DESCRIPTION:
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I B M T M , PS/2 T M ,
a r e
r e g i s t e r e d
International Business Machines.
WARRANTY INFORMATION
r e p a i r
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Have this information available when requesting
D S - 1 0 0 0
D U A L
C O M M U N I C A T I O N S
a n d
M i c r o
t r a d e m a r k s
i
D S - 1 0 0 0 t o
from the date of purchase.
a n y
b o a r d
i n
t h i s
d o c u m e n t
t h a t
r e s u l t s
C H A N N E L
R S - 2 3 2
B O A R D
Channel T M
o f
b e
f r e e
o f
Qua
t h a t
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t o
d u r i n g
t h e
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i m p r o p e r
Qua Tech
A S Y N C H R O N O U S

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Summary of Contents for Quatech DS-1000

  • Page 1 WARRANTY INFORMATION Q u a T e c h I n c . w a r r a n t s t h e D S - 1 0 0 0 t o f r e e defects for o n e ( 1 ) y e a r from the date of purchase.
  • Page 2: Federal Communications Commission Statement

    C O M M I S S I O N S T A T E M E N T +-----------------------------------------------+ The Qua Tech DS-1000 is certified to comply with Class B limits, Part 15 of FCC Rules. FCC ID: F4A4LUDS1000...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS WARRANTY INFORMATION ... . FEDERAL COMMUNICATIONS COMMISSION STATEMENT LIST OF FIGURES ....iv INTRODUCTION ....BOARD DESCRIPTION .
  • Page 4: List Of Figures

    LIST OF FIGURES Figure DS-1000 board layout ..Figure 16550 internal registers ..Figure Interrupt enable register ..Figure Interrupt identification register...
  • Page 5: Introduction

    I N T R O D U C T I O N The DS-1000 is a dual channel RS-232C asynchronous serial c o m m u n i c a t i o n a d a p t e r f o r t h e P S / 2 .
  • Page 7: 16550 Functional Description

    III. 1 6 5 5 0 F U N C T I O N A L D E S C R I P T I O N T h e 1 6 5 5 0 u p g r a d e t h e s t a n d a r d 1 6 4 5 0...
  • Page 8: Interrupt Enable Register

    I I I A . I N T E R R U P T E N A B L E R E G I S T E R +-------+ +-------+ +-------+ +-------+ +-------+ | EDSSI |----- MODEM status +-------+ | ELSI |----- Receiver line status +-------+ | ETBEI |----- Transmitter holding register empty...
  • Page 9: Interrupt Identification Register

    I I I B . I N T E R R U P T I D E N T I F I C A T I O N R E G I S T E R +------+ | FFE |----- FIFO enable (FIFO only) +------+ +------+ +------+...
  • Page 10 I I I B . I N T E R R U P T I D E N T I F I C A T I O N R E G I S T E R (continued) +---------------------+----------+----------------------+ | IID2 IID1 IID0 | Priority | Interrupt Type +---------------------+----------+----------------------+...
  • Page 11: Fifo Control Register

    DMAM - DMA Mode Select: When set (logic 1), RxRDY and TxRDY change from mode 0 to mode 1. (DMA mode not supported on DS-1000) XRST - Transmit FIFO Reset: When set (logic 1), all bytes in the transmitter FIFO...
  • Page 12: Line Control Register

    I I I D . L I N E C O N T R O L R E G I S T E R +------+ | DLAB |----- Divisor latch access bit +------+ | BKCN |----- Break control +------+ | STKP |----- Stick parity +------+ | EPS |----- Even parity select...
  • Page 13: Figure 10. Word Length And Stop Bit Options

    I I I D . L I N E C O N T R O L R E G I S T E R (continued) - Number of Stop Bits: S e t s t h e n u m b e r o f s t o p b i t s t r a n s m i t t e d . S e e W L S x and Figure 10.
  • Page 14: Modem Control Register

    Used for interrupt enable. See section VII. OUT1 - Output 1: Controls the OUT1 output, pin 34, as described above. Unused on DS-1000. - Request To Send: Controls the RTS output, pin 32, as described above. - Data Terminal Ready:...
  • Page 15: Line Status Register

    I I I F . L I N E S T A T U S R E G I S T E R +------+ | FFRX |----- Error in FIFO RCVR (FIFO only) +------+ | TEMT |----- Transmitter empty +------+ | THRE |----- Transmitter holding register empty +------+ |----- Break interrupt...
  • Page 16 I I I F . L I N E S T A T U S R E G I S T E R (continued) Bits BI, FE, PE, and OE are the sources of receiver line status interrupts. The bits a r e r e s e t r e a d i n g...
  • Page 17: Modem Status Register

    I I I G . M O D E M S T A T U S R E G I S T E R +------+ | DCD |----- Data carrier detect +------+ |----- Ring indicator +------+ | DSR |----- Data set ready +------+ | CTS |----- Clear to send...
  • Page 18: Scratchpad Register

    I I I H . S C R A T C H P A D R E G I S T E R This register is not used by the 16550. It may be used by the programmer for data storage. F I F O I N T E R R U P T M O D E...
  • Page 19: Addressing

    A D D R E S S I N G E a c h c h a n n e l t h e D S - 1 0 0 0 u s e s c o n s e c u t i v e I / O a d d r e s s l o c a t i o n s .
  • Page 20: Figure 15. Pos Implementation

    +-- Interrupt select | INS20 |--+ +-------+ | ADS23 |--+ +-------+ | ADS22 | +-------+ +-- Address select | ADS21 | +-------+ | ADS20 |--+ +-------+ |----- Reserved +-------+ Figure 15. DS-1000 POS implementation. (a) POS location 102H (b) POS location 103H...
  • Page 21: Figure 16. Base Address Locations

    +-------------------------+-------------------+ | ADSx3 ADSx2 ADSx1 ADSx0 | Base address +-------------------------+-------------------+ 3F8H (Serial 1) | 2F8H (Serial 2) | | 3220H (Serial 3) | | 3228H (Serial 4) | | 4220H (Serial 5) | | 4228H (Serial 6) | | 5220H (Serial 7) | | 5228H (Serial 8) |...
  • Page 22: Output Configurations

    O U T P U T C O N F I G U R A T I O N S R S - 2 3 2 - C d e v i c e s a r e c l a s s i f i e d b y t h e i r f u n c t i o n a s e i t h e r D a t a T e r m i n a l E q u i p m e n t ( D T E ) o r D a t a C o m m u n i c a t i o n E q u i p m e n t ( D C E ) .
  • Page 23: Figure 19. Rs-232-C Connectors

    Figure 19. Output connectors. (a) D-9 connector. (b) D-25 connector. (adapter cable output) +---------------------------+----------------+----------------+ | DTE Connection | DCE Connection | RS-232-C Description +-------+--------+-------+--------+ D-25 D-25 +---------------------------+-------+--------+-------+--------+ | Data Carrier Detect (DCD) | | Receive Data (RxD) | | Transmit Data (TxD) | | Data Terminal Ready (DTR) | | Signal Ground...
  • Page 24: Figure 21. Typical Rs-232-C Cabling

    Device Device ( 3) RxD o-----------------o TxD ( 3) ( 2) TxD o-----------------o RxD ( 2) ( 4) RTS o-----------------o CTS ( 4) ( 5) CTS o-----------------o RTS ( 5) (20) DTR o-----------------o DSR (20) ( 6) DSR o-----------------o DTR ( 6) ( 8) DCD o-----------------o DCD ( 8) (22) RI o-----------------o RI...
  • Page 25: Figure 22. Dte/Dce Output Jumper Configurations

    (b) Jumper connections (c) Jumper connections for DTE configuration. for DCE configuration. Figure 22. DS-1000 output configuration jumpers. Shown are jumpers for port 1. NOTE: Connections are referenced by port and pin number. e.g. P1.3 _ port 1 pin 3, P1.6 _...
  • Page 26: Installation

    I N S T A L L A T I O N M a k e s u r e t h e r e i s a c o p y o f t h e o r i g i n a l r e f e r e n c e d i s k e t t e a v a i l a b l e .
  • Page 27: Specifications

    S P E C I F I C A T I O N S Bus interface: IBM MicroChannel 16-bit bus Controllers: 2 - 16550 Asynchronous Communication Elements (ACEs) RS-232 interface: 2 - D-9 connectors (male) optional: 2 - D-25 connectors (male) available using adapter cables provided Transmit drivers: MC1488 or compatible...

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