OPERATIONS MANUAL PCM-COM4A

Transcription

1 OPERATIONS MANUAL PCM-COM4A NOTE: This manual has been designed and created for use as part of the WinSystems Technical Manuals CD and/or the WinSystems website. If this manual or any portion of the manual is downloaded, copied or ed, the links to additional information (i.e. software, cable drawings) will be inoperable. WinSystems reserves the right to make changes in the circuitry and specifications at any time without notice. Copyright 1996 by WinSystems. All Rights Reserved.

2 RE VI SION HISTORY P/N ECO Num ber Date Code Re vi sion ORIGI NATED B B1

3 TABLE OF CONTENTS Section Paragraph Title Visual Index Quick Reference Page i 1 General Information Features General Description Specifications PCM-COM4A Technical Reference Introduction I/O Map Selection RS-232/RS-422/RS-485 Mode Selection Interrupt Routing Interrupt Termination Interrupt Status Register Connector/Jumper Summary 2-8 APPENDIX A PCM-COM4A Connector Pinout APPENDIX B Startech 16C554 Data Sheet Reprint, Cable Drawing, Software Examples Warranty and Repair Information

4 Visual Index Quick Reference For the convenience of the user, a copy of the Visual Index has been provided with direct links to connector and jumper configuration data. J4 COMM3 RS232/RS422/RS485 Selection J1 COMM4 RS232/RS422/RS485 Selection J2 COMM1 RS232/RS422/RS485 Selection J5 COMM2 RS232/RS422/RS485 Selection J3 COMM3/COMM4 I/O Connector J6 COMM1/COMM2 I/O Connector J7 Interrupt Sharing Jumper J8 Interrupt Termination Selection J10 Interrupt Routing Header J9 I/O Address Decode Selection i PCM-COM4A OPERATIONS MANUAL

5 1 GENERAL INFORMATION 1.1 FEATURES Quad 8250 Compatible UARTS Asyn chro nous Data rates to 115Kbps Optional RS- 422/RS- 485 usage on any or all chan nels I/O Map ping PLD for COM1 through COM26 selection Asyn chro nous data rates to 115Kbps +5 volt only op era tion Shared in ter rupt ca pa ble with in ter rupt ID register Soft ware programmable FIFO up to 16 bytes deep 1.2 GENERAL DESCRIPTION The LPM/MCM-COM4A is a 4 channel se rial 8250 compatible PC/104 Module based on the Star tech 16C554. It is ideally suited for applications that require exact PC compatibl e hard ware to the register level. Each channel is fac tory configured for RS- 232 usage. By in - stall ing optional line driver ICs each channel may be individually configured for RS- 422, or RS-485 modes. Versatile in ter rupt rout ing al lows for in di vid ual or shared interrupts. A n in ter rupt status register allows easy identification of the interrupt source. Eight I/O map - ping options al low for a to tal of up to 26 COM port ad dresses in a PC style sys tem. The Star - tech 16C554 has a soft ware programmable trans mit and receive FIFO of up to 16 bytes in depth PCM-COM4A OPERATIONS MANUAL Page 1-1

6 WinSystems "The Embedded Systems Authority" 1.3 SPECIFICATIONS Electrical Bus Interface : PC/104 8-Bit / 16-Bit VCC : +5v 80 ma. I/O Addressing: PLD Controlled I/O address uses 10 Bit address. Each Channel requires 8 consecutive I/O ports Mechanical Dimensions : 4.1" X 3.6" X 0.5" PC BOARD : FR4 Epoxy glass, with 2 signal layers and 2 power planes with screened component legend, and plated through holes. Jumpers : 0.025" square posts on 0.10" centers Serial I/O Connectors : 20 pin 0.10" grid RN type IDH-20-LP Environmental Operating Temperature : -40 to 85 C Non Condensing Humidity : 5% to 95% Page 1-2 PCM-COM4A OPERATIONS MANUAL

7 2 PCM-COM4A TECHNICAL REFERENCE 2.1 INTRODUCTION This sec tion of the manual pro vides the nec es sary information to configure the PCM- COM4A board for the desired mode of op era tion and to configure in ter rupt rout ing as de - sired. For pro gram ming and register de tails ref er to APPENDIX C where the Star tech 16C554 datasheet is re printed in it's en tirety. 2.2 I/O MAP SELECTION MAP 0 MAP 1 MAP 2 o 6 o 6 o 6 MAP 3 o 6 MAP 4 o 6 MAP 5 o 6 J9 o 6 MAP 6 o 6 MAP 7 o 6 I/O MAP SELECT JUMPER J9 Map No CH1 CH2 CH3 CH4 INT ID 0 3F8 2F8 3E8 2E E8 2E8 3A8 2A Reserved C PCM-COM4A OPERATIONS MANUAL Page 2-1

8 WinSystems "The Embedded Systems Authority" 2.3 RS-232/RS-422/RS-485 Mode Selection Each of the 4 serial channels may be configured in de pend ently for either RS-232, RS- 422, or RS- 485 sig nal levels. An optional Chip Kit Win sys tems part number CK is nec es sary to al low con figu ra tion of a single channel for RS- 422 use or up 2 channelso f RS485 us age. If four channels of RS- 422 use is de sired, four CK Kits will be re - quired. Con figu ra tion of each channel con sists of in stall ing and/or re mov ing the ap pro pr i - ate line driver ICs and installing the re quired jumpers. Appropriate jumpering, chip installation and the output con nec tor pin out is shown for each of the channels in each mode. Chan nel 1 - I/O Connector J6 U6 - MAX208CNG - INSTALLED U3 - REMOVED U3 J U4 J Carrier Detect RX Data TX Data DTR CH1 DB9 DSR RTS CTS RI U6 CHANNEL 1 RS-422 MODE U6 - REMOVED U INSTALLED U INSTALLED J CHANNEL 1 RS-485 MODE U6 - REMOVED U3 - REMOVED U INSTALLED J TX+ TX- CH1 DB9 RX+ RX- TX/RX+ TX/RX- CH1 DB9 Page 2-2 PCM-COM4A OPERATIONS MANUAL

9 WinSystems "The Embedded Systems Authority" Chan nel 2 - I/O Connector J6 Carrier Detect RX Data TX Data DTR CHANNEL 2 RS-232 MODE U13 - MAX208CNG - INSTALLED U10 - REMOVED U14 - REMOVED J5 1 o 2 o 3 o CH2 DB9 CHANNEL 2 RS-422 MODE DSR RTS CTS RI U13 - REMOVED U INSTALLED U INSTALLED U13 CHANNEL 2 RS-485 MODE U13 - REMOVED U10 - REMOVED U INSTALLED U10 J5 1 o 2 o 3 o U14 J5 1 o 2 o 3 o J5 1 o 2 o 3 o CH2 DB9 CH2 DB9 TX+ TX- RX+ RX- TX/RX+ TX/RX PCM-COM4A OPERATIONS MANUAL Page 2-3

10 WinSystems "The Embedded Systems Authority" Channel 3 - I/O Connector J3 CHANNEL 3 RS-232 MODE U11 - MAX208CNG - INSTALLED U9 - REMOVED U12 - REMOVED U9 J4 1 o 2 o 3 o J4 1 o 2 o 3 o U11 CH3 DB9 Carrier Detect RX Data TX Data DTR DSR RTS CTS RI U12 CHANNEL 3 RS-422 MODE U11 - REMOVED U INSTALLED U INSTALLED CHANNEL 3 RS-485 MODE U11 - REMOVED U9 - REMOVED U INSTALLED J4 1 o 2 o 3 o J4 1 o 2 o 3 o TX+ TX- CH3 DB9 RX+ RX- TX/RX+ TX/RX- CH3 DB9 Page 2-4 PCM-COM4A OPERATIONS MANUAL

11 WinSystems "The Embedded Systems Authority" Chan nel 4 - I/O Connector J3 CHANNEL 4 RS-232 MODE U5 - MAX208CNG - INSTALLED U1 - REMOVED U2 - REMOVED U1 J U2 J Carrier Detect RX Data TX Data DTR CH4 DB9 DSR RTS CTS RI U5 CHANNEL 4 RS-422 MODE U5 - REMOVED U INSTALLED U INSTALLED CHANNEL 4 RS-485 MODE U5 - REMOVED U1 - REMOVED U INSTALLED J J TX+ TX- CH4 DB9 RX+ RX- TX/RX+ TX/RX- CH4 DB PCM-COM4A OPERATIONS MANUAL Page 2-5

12 WinSystems "The Embedded Systems Authority" 2.4 INTERRUPT ROUTING J J o o Interrupt control jumpers J7, J8, and J10. J o o Shared Interrupts For shared interrupts on the PC/104 BUS, jumper J7 as shown be low and se lect the PC/104 bus pin onto which the shared interrupt is routed by placing a sin gle jumper on J10 straight across to the desired PC/104 pin. The interrupt ID register must then be read in the In ter rupt Serv ice Routine to determine which UART chan nel(s) re quires serv ice. J IRQ10 IRQ11 IRQ12 IRQ15 IRQ14 IRQ2 IRQ7 IRQ6 IRQ5 IRQ3 IRQ3 IRQ4 IRQ4 J10 o 6 7 o o 8 9 o o o o o o 14 1 o o o o o o o 24 2 o 26 Channel 1 Channel 2 Channel 1 Channel 4 Channel 3 Channel 2 Channel 1 Channel 4 Channel 3 Channel 4 Channel 2 Channel 3 Channel 1 Page 2-6 PCM-COM4A OPERATIONS MANUAL

13 WinSystems "The Embedded Systems Authority" Individual Interrupts For in di vid ual in ter rupts to the PC/104 bus, J7 should re main un jumpered as shown be low and each interrupt source CH1-CH4 may be jumpered to the desired PC/104 bus pin. Wire- wrapping may be nec es sary for certain selections. J IRQ10 IRQ11 IRQ12 IRQ15 IRQ14 IRQ2 IRQ7 IRQ6 IRQ5 IRQ3 IRQ3 IRQ4 IRQ4 J10 o 6 7 o o 8 9 o o o o o o 14 1 o o o o o o o 24 2 o 26 Channel 1 Channel 2 Channel 1 Channel 4 Channel 3 Channel 2 Channel 1 Channel 4 Channel 3 Channel 4 Channel 2 Channel 3 Channel INTERRUPT TERMINATION The PC/104 Bus does not terminate in ter rupt in puts. The unique de sign of PC compati - ble se rial cards al lows an in ter rupt output to a be tri- stated (effectively dis con nected) re - sult ing in a float ing in ter rupt line. To avoid the pos si bil ity of in ad ver tant spurious in ter rupts occuring due to this float ing condition, a terminating pull-down resistori s nec - es sary. Jumper block J8 pro vides this ter mi na tion ca pa bil ity on a channel by channel bas is. Note that when shared in ter rupts are used only one of the channels need be ter mi nated. J8 is shown below : J8 Channel 1 Channel 2 Channel 3 Channel 4 1 o o2 3 o o4 o6 7 o o8 2.6 INTERRUPT STATUS REGISTER The PCM-COM4 board has an onboard in ter rupt identification register mapped at an I/O port de pend ent on the I/O map selected (See I/O Map Selection). This register is used pri mar ily with shared in ter rupts to allow quick identification of the UART chan nel(s) needing service. The register is read-only and has the following bit definitions. D7 D6 D5 D4 D3 D2 D1 D0 N/A N/A N/A N/A CH4 CH3 CH2 CH PCM-COM4A OPERATIONS MANUAL Page 2-7

14 WinSystems "The Embedded Systems Authority" When read, the ap pro pri ate bit for the channel will read as a '1' if an in ter rupt is pend - ing. Read ing this register has NO ef fect on the interrupt. The in ter rupt ing con di tion mu st be cleared by appropriate han dling of the UART. It is nec es sary when using shared inter - rupts for the ISR to de ter mine that ALL interrupts have been cleared bef ore exiting the serv ice rou tine. 2.7 CONNECTOR/JUMPER SUMMARY Connector Purpose Page Reference J1 COMM4 RS232/RS422/RS485 Select 2-5 J2 COMM1 RS232/RS422/RS485 Select 2-2 J3 COMM3/COMM4 I/O Connector 2-4, 2-5 J4 COMM3 RS232/RS422/RS485 Select 2-4 J5 COMM2 RS232/RS422/RS485 Select 2-3 J6 COMM1/COMM2 I/O Connector 2-2, 2-3 J7 Interrupt Sharing Jumper 2-6 J8 Interrupt Termination Se lect 2-7 J9 I/O Address Decode Select 2-1 J10 Interrupt routing header 2-6 J11 PC/104 8-Bit Bus Connector N/A J12 PC/ Bit Bus Connector N/A Page 2-8 PCM-COM4A OPERATIONS MANUAL

15 6APPENDIX A PCM-COM4A Con nec tor Pinouts

16 PCM- COM4A I/O CON NEC TOR PIN- OUTS Channel RS-232 RS422 RS-485 J6 1 CD 1 RX Data TX+ TX/RX+ 1 TX Data TX- TX/RX- o 6 1 DTR 7 o o o o 10 2 CD 11 o o 12 2 RX Data TX+ TX/RX+ 13 o o 14 2 TX Data TX- TX/RX- 1 o 16 2 DTR 17 o o o o 20 Channel RS-232 RS-422 RS DSR RX+ TX/RX+ 1 RTS RX- TX/RX- 1 CTS 1 RI - 2 DSR RX+ TX/RX+ 2 RTS RX- TX/RX- 2 CTS 2 RI - Channel RS-232 RS422 RS CD 3 RX Data TX+ TX/RX+ 3 TX Data TX- TX/RX- 3 DTR 3 4 CD 4 RX Data TX+ TX/RX+ 4 TX Data TX- TX/RX- 4 DTR 4 J3 o 6 7 o o 8 9 o o o o o o 14 1 o o o o o 20 Channel RS-232 RS-422 RS DSR RX+ TX/RX+ 3 RTS RX- TX/RX- 3 CTS 3 RI - 4 DSR RX+ TX/RX+ 4 RTS RX- TX/RX- 4 CTS 4 RI -

17 APPENDIX B Startech Datasheet Reprint Datasheet for Startech 16C554 universal asynchronous receiver Startech16C554.pdf Cable Drawings Part Number Description CBL pin ribbon to two male 9-pin "D" connector adapter cable Software Examples Windows NT/2000/XP Registry changes for using shared interrupts with PCM-COM4A and PCM-COM8 Using Shared Interrupts with Linux Simple C routine that uses receive interrupt NTCOM4Example.pdf linux_com4_shared.pdf 8250INTA.ZIP

18 Telephone: Fax: WARRANTY WinSystems warrants that for a period of two (2) years from the date of shipment any Products and Software purchased or licensed hereunder which have been developed or manufactured by WinSystems shall be free of any material defects and shall perform substantially in accordance with WinSystems' specifications therefore. With respect to any Products or Software purchased or licensed hereunder which have been developed or manufactured by others, WinSystems shall transfer and assign to Customer any warranty of such manufacturer or developer held by WinSystems, provided that the warranty, if any, may be assigned. The sole obligation of WinSystems for any breach of warranty contained herein shall be, at its option, either (i) to repair or replace at its expense any materially defective Products or Software, or (ii) to take back such Products and Software and refund the Customer the purchase price and any license fees paid for the same. Customer shall pay all freight, duty, broker's fees, insurance changes and other fees and charges for the return of any Products or Software to WinSystems under this warranty. WinSystems shall pay freight and insurance charges for any repaired or replaced Products or Software thereafter delivered to Customer within the United States. All fees and costs for shipment outside of the United States shall be paid by Customer. The foregoing warranty shall not apply to any Products or Software which have been subject to abuse, misuse, vandalism, accidents, alteration, neglect, unauthorized repair or improper installations. THERE ARE NO WARRANTIES BY WINSYSTEMS EXCEPT AS STATED HEREIN. THERE ARE NO OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IN NO EVENT SHALL WINSYSTEMS BE LIABLE FOR CONSEQUENTIAL, INCIDENTAL, OR SPECIAL DAMAGES INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF DATA, PROFITS OR GOODWILL. WINSYSTEMS' MAXIMUM LIABILITY FOR ANY BREACH OF THIS AGREEMENT OR OTHER CLAIM RELATED TO ANY PRODUCTS, SOFTWARE, OR THE SUBJECT MATTER HEREOF, SHALL NOT EXCEED THE PURCHASE PRICE OR LICENSE FEE PAID BY CUSTOMER TO WINSYSTEMS FOR THE PRODUCTS OR SOFTWARE OR PORTION THEREOF TO WHICH SUCH BREACH OR CLAIM PERTAINS. WARRANTY SERVICE All products returned to WinSystems must be assigned a Return Material Authorization (RMA) number. To obtain this number, please call or FAX WinSystems' factory in Arlington, Texas and provide the following information: 1. Description and quantity of the product(s) to be returned including its serial number. 2. Reason for the return. 3. Invoice number and date of purchase (if available), and original purchase order number. 4. Name, address, telephone and FAX number of the person making the request. 5. Do not debit WinSystems for the repair. WinSystems does not authorize debits. After the RMA number is issued, please return the products promptly. Make sure the RMA number is visible on the outside of the shipping package. The customer must send the product freight prepaid and insured. The product must be enclosed in an anti-static bag to protect it from damage caused by static electricity. Each bag must be completely sealed. Packing material must separate each unit returned and placed as a cushion between the unit(s) and the sides and top of the shipping container. WinSystems is not responsible for any damage to the product due to inadequate packaging or static electricity.