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3612 Manual | SL9115 9/2021

Technical Description

The

PC-ACB.MP

utilizes the Zilog 85233

nhanced

erial

ommunications

ontroller (ESCC). This chip

features programmable baud rate, data format and interrupt control. Refer to the ESCC

User’s Manual

for

details on programming the 85233 ESCC chip.

Features

•

One channel of synchronous or asynchronous communications using the Zilog Z85233 chip

•

Programmable electrical interface selection EIA/TIA-232/530/530A/485 and ITU V.35

•

Programmable options for Transmit clock as input or output

•

Software programmable baud rate

Internal Baud Rate Generator

The baud rate of the ESCC is programmed under software control.

Control and Status Registers Definition

The control and status registers occupy 16 consecutive locations. The following tables provide a functional
description of the bit positions. X = do not care

Base

Mode

IRQST

DSRA

485CLK

ECHOA

SYNCA_RTS

SYNCA_CTS

AM3

AM2

AM1

AM0

485CLK

ECHOA

SYNCA_RTS

SYNCA_CTS

AM3

AM2

AM1

AM0

RLA

LLA

TSETSLA

RXCOPTA

RLA

LLA

TSETSLA

RXCOPTA

SD7

SD6

SD5

SD4

SD3

SD2

SD1

SD0

Содержание PC-ACB.MP

Страница 1: ...1 Sealevel Systems Inc 3612 Manual SL9115 9 2021 PC ACB MP User Manual 3612 ...

Страница 2: ...ts CONTENTS 2 INTRODUCTION 3 BEFORE YOU GET STARTED 4 INSTALLATION 5 TECHNICAL DESCRIPTION 7 SPECIFICATIONS 15 APPENDIX A TROUBLESHOOTING 16 APPENDIX B HOW TO GET ASSISTANCE 17 APPENDIX C ELECTRICAL INTERFACE 18 APPENDIX D COMPLIANCE NOTICES 20 WARRANTY 21 ...

Страница 3: ...tor standard for memory cards In 1989 PCMCIA adopted the JEIDA 68 pin standard and worked with JEIDA on further developments As the notebook market grew the need for a standard I O bus was seen The PCMCIA groups saw an opportunity to meet this need with an expanded version of the 68 pin interface Further development occurred and within one year release 2 0 of the standard was completed Release 2 0...

Страница 4: ...ying Case Jewel Case Advisory Conventions Warning The highest level of importance used to stress a condition where damage could result to the product or the user could suffer serious injury Important The middle level of importance used to highlight information that might not seem obvious or a situation that could cause the product to fail Note The lowest level of importance used to provide backgro...

Страница 5: ...rovide adequate support for most applications Connecting the PC ACB MP to the computer requires no special technical skills In fact it is usually done in as simple as two steps 1 Follow the directions below which are given for your operating system in the Software Installation The SeaMAC synchronous serial driver must be installed prior to the hardware being installed 2 Simply slide the card into ...

Страница 6: ...sync and RAW protocols are supported Please contact Sealevel Systems Inc Technical Support to discuss your specific requirements 864 843 4343 Our technical support is free and available from 8 00 AM to 5 00 PM Eastern Time Monday through Friday For email support contact support sealevel com Installation is complete Optional Items The PC ACB MP has several cabling options available All optional ite...

Страница 7: ... V 35 Programmable options for Transmit clock as input or output Software programmable baud rate Internal Baud Rate Generator The baud rate of the ESCC is programmed under software control Control and Status Registers Definition The control and status registers occupy 16 consecutive locations The following tables provide a functional description of the bit positions X do not care Base Mode D7 D6 D...

Страница 8: ... RXCOPTA 1 Selects SCC PCLK for RTXCA 0 Selects received RXC for RTXCA SYNCA_RTS SYNCA _RTS 1 SYNCA connected to RTS 0 SYNCA is high SYNCA_CTS SYNCA_CTS 1 SYNCA connected to CTS 0 SYNCA is high 485CLK TSET switches with TXD 1 clk switches 0 no CLK switching ECHOA ECHO enable 1 echo disabled 0 echo enabled AM0 AM3 I O mode select See table for valid interface options 0 High Impedance SD0 SD7 Option...

Страница 9: ...tion There is line termination on RXD RXC and TXC in the following modes RS 530 RS 530A RS 485T and V 35 HEX M3 M2 M1 M0 Interface Mode 0 0 0 0 0 All signals are high impedance 1 0 0 0 1 not supported 2 0 0 1 0 RS 232 3 0 0 1 1 not supported 4 0 1 0 0 RS 485T with 120 ohm termination 5 0 1 0 1 RS 485 without termination 6 7 8 9 0 1 1 0 not supported A 1 0 1 0 single ended loop back B 1 0 1 1 diffe...

Страница 10: ...er Detect 8 Input TM Test Mode 25 Input TXC Transmit Clock 15 Input RXC Receive Clock 17 Input TSET Transmit Signal Element Timing 24 Output DTR Data Terminal Ready 20 Output TD Transmit Data 2 Output RTS Request To Send 4 Output Please terminate any control signals that are not going to be used The most common way to do this is connect RTS to CTS and RI Also connect DCD to DTR and DSR Terminating...

Страница 11: ... Input RXCB RXC Receive Clock Positive 9 X Input RXCA RXC Receive Clock Negative 17 V Input TDB TX Transmit Positive 14 S Output TDA TX Transmit Negative 2 P Output TSETB TSET Transmit Signal Element Timing 11 W Output TSETA TSET Transmit Signal Element Timing 24 U Output CTS Clear To Send 5 D Input DSR Data Set Ready 6 E Input DCD Data Carrier Detect 8 F Input DTR Data Terminal Ready 20 H Output ...

Страница 12: ...it Clock Positive 12 Input TXCA TXC Transmit Clock Negative 15 Input RXCB RXC Receive Clock Positive 9 Input RXCA RXC Receive Clock Negative 17 Input TDB TX Transmit Positive 14 Output TDA TX Transmit Negative 2 Output RTSB RTS Request To Send Positive 19 Output RTSA RTS Request To Send Negative 4 Output DTRB DTR Data Terminal Ready Positive 23 Output DTRA DTR Data Terminal Ready Negative 20 Outpu...

Страница 13: ... Detect Negative 8 Input TXCB TXC Transmit Clock Positive 12 Input TXCA TXC Transmit Clock Negative 15 Input RXCB RXC Receive Clock Positive 9 Input RXCA RXC Receive Clock Negative 17 Input TDB TX Transmit Positive 14 Output TDA TX Transmit Negative 2 Output RTSA RTS Request To Send Negative 4 Output DTRA DTR Data Terminal Ready Negative 20 Output TSETB TSET Transmit Signal Element Timing Positive...

Страница 14: ...RX Receive Positive 16 Input RDA RX Receive Negative 3 Input TXCB TXC Transmit Clock Positive 12 Input TXCA TXC Transmit Clock Negative 15 Input RXCB RXC Receive Clock Positive 9 Input RXCA RXC Receive Clock Negative 17 Input TDB TX Transmit Positive 14 Output TDA TX Transmit Negative 2 Output TSETB TSET Transmit Signal Element Timing Positive 11 Output TSETA TSET Transmit Signal Element Timing Ne...

Страница 15: ...midity Range 10 to 90 R H Non Condensing 10 to 90 R H Non Condensing Manufacturing All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are 100 electrically tested These printed circuit boards are solder mask over bare copper or solder mask over tin nickel Power Consumption Supply Line 5 VDC Rating 170 mA Mean Time Between Failures MTBF Greater than 150 000 hours Calculated ...

Страница 16: ... in your system This includes your on board serial ports controller cards sound cards etc The I O addresses used by these adapters as well as the IRQ if any should be identified 2 Make sure the Sealevel Systems adapter is securely installed in a PCMCIA slot 3 Use the supplied Sealevel Software and this User Manual to verify that the Sealevel Systems adapter is configured correctly This software co...

Страница 17: ...vides an FAQ section on its web site Please refer to this to answer many common questions This section can be found at http www sealevel com faq asp Sealevel Systems maintains a web page on the Internet Our home page address is www sealevel com The latest software updates and newest manuals are available via our web site Technical support is available Monday to Friday from 8 00 a m to 5 00 p m eas...

Страница 18: ...tes a binary 1 mark The RS 232 and the EIA TIA 574 specification defines two type of interface circuits Data Terminal Equipment DTE and Data Circuit Terminating Equipment DCE The Sealevel Systems adapter is a DTE interface RS 422 The RS 422 specification defines the electrical characteristics of balanced voltage digital interface circuits RS 422 is a differential interface that defines voltage lev...

Страница 19: ... signal levels are met and the pin out for the DB 25 connector is specified The EIA Electronic Industry Association created the RS 530 specification to detail the pin out and define a full set of modem control signals that can be used for regulating flow control and line status The major difference between RS 530 and RS 530A lies in the modem control interface signals In RS 530 all signals are dif...

Страница 20: ...d to correct the interference at the user s expense EMC Directive Statement Products bearing the CE Label fulfill the requirements of the EMC directive 89 336 EEC and of the low voltage directive 73 23 EEC issued by the European Commission To obey these directives the following European standards must be met EN55022 Class A Limits and methods of measurement of radio interference characteristics of...

Страница 21: ...nty Warranty service may be obtained by delivering the Product to Sealevel and providing proof of purchase Customer agrees to ensure the Product or assume the risk of loss or damage in transit to prepay shipping charges to Sealevel and to use the original shipping container or equivalent Warranty is valid only for original purchaser and is not transferable This warranty applies to Sealevel manufac...

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