RPX Lite (LITE_DW), User Manual
Contents
1. ii Ill LAU LL LU LL O TP1 A1 B1 TP2 A1 B1 i m gt P1 P2 ETH O ROB3 ROA3 PE3 ROSR L L L MON PM3 K er Mler1a MONITOR PORT ETHERNET PORT USB A USB B 5 VDC SMC1 SCC2 T00011A Figure 1 1 RPX Lite Board Top View 8 700M0006RA0 Computing Engines RPX Lite Chapter 1 Introduction PCMCIA ON U 1 2 3 4 P10 UUU UODUUUUUUUU JUU UUNI RNB12 i in RNA12 ol mi RO1 RO2D CR6 CR3 CR1 I creo go oo go O cre T00019A Figure 1 2 RPX Lite Board Bottom View How to Use This Manual 700M0006RA0 1 Refer to Chapter 2 for setup information including str2. 4 2 Computing Engines RPX Lite Title Page Hardware Tr IS sesa a i pP 7 Reterenee Documents sa i iii eier a D 10 DELANO LIN ais dao sai ii a a sa i i a ai a ao 11 ID Be LS S iai i i a a ouanes mane ee ese ea 11 DEBUG FOL DO CE DO een ars 13 TAP OTAG Or OL ee ee 14 UTILITY Header Pinot een 14 Ethernet Pori Po PES eek 15 Monitor Port Pinout PM I een 15 TypeA USP Port COLT T alksniai r eer eee 15 Type B USB Port Pour 15 Jere ren LED Den Tone a anne ere eee 19 Ethernet LED Definitions nee 19 700M0006RA0 Introduction Chapter 1 The RPX Lite LITE DW is a highly integrated single board computer SBC based on the Motorola MPC850 and MPC823 The MPC850 versions are targeted for the telecommunications industries while the MPC823 version is targeted for the industrial controls market Support is available from Embedded Planet or from third party vendors for several commonly used real time operating systems RTOS The RPX Lite is in a PC104 board form factor Figs 1 1 and 1 2 It does not con tain PC104 ISA or PC104 PCI functionality but rather adheres to the mechan ical specifications of the PC104 standard For PC104 ISA or PC104 PCI reguirements refer to the RPXC User Manual Functions The functions included on the RPX Lite are listed in Table 1 1 For programming information refer to the RPX Lite Programmer s Firmware Manual Table 1 1 Hardware Features Entity Function Processor MPC850 SR DE
3. Computing Engines RPX Lite LITE DW User Manual Developing Embedded Applications amp Products Utilizing Motorola PowerPC 8xx Processors 700M0006RA0 700M0006RA0 Computing Engines RPX Lite Notice Trademarks 700M0006RA0 This manual in whole or in part is to be considered the intellectual property of Embedded Planet The manual and all information explained and derived there from are protected by the license to which you agreed upon opening this package This document contains confidential information and is intended for the sole purpose of the end user to develop applications on the RPX Lite product offered by Embedded Planet LLC Neither the document nor reproductions of it nor information derived from it is to be given to others nor used for any other purpose other than for RPX Lite applications No use is to be made of it which is or may be injurious to Embedded Planet LLC and no use is to be made of it other than for RPX Lite applications Embedded Planet PlanetTrack Linux Planet Blue Planet RPX Lite and RPX LICC are trademarks or registered trademarks of Embedded Planet PowerPC is a trademark of International Business Machines All other names and trademarks are the property of their respective owners Computing Engines RPX Lite 700M0006RA0 Computing Engines RPX Lite Contents Chapter 1 Introduction siai iii iii i ji i ij ij nnnm mnnn 7 PODC ODS a a e rr Pr How to Use This Maintal o
4. RTS DB25 7 GND The utility code assumes the board is connected to a dumb terminal or a PC based terminal emulator and reguires user intervention for the diagnostics The dumb terminal or PC serial port should be set as follows e 9600 baud default e 8databits e 1stopbit e No parity e No hardware handshake Proper interfacing to the monitor port via the correct RS 232 connections must be insured as described in RS 232 Cable Connections in this chapter The dumb ter minal or PC serial port might require the CTS signal to be true In this case the RTS signal which is driven true from the monitor port should also be connected in the cable path to the CTS signal on the dumb terminal or PC serial port NOTES 1 The DRAM test is a destructive test 2 The FLASH and NVRAM tests are non destructive tests 24 700M0006RA0 Computing Engines RPX Lite 25 700M0006RA0 Embedded Planet 749 Miner Rd Cleveland Ohio 44143 www embeddedplanet com Form 700M0006RA0 Litho in U S A Oct2000 Copyright 2000 Embedded Planet LCC All Rights Reserved Computing Engines RPX Lite Phone 440 646 0077 Fax 440 461 4329 Toll Free 877 468 6899
5. 2 RTS can be driven by the BCSR 3 CTS can be received by the BCSR 4 DTR can be driven via strapping option by the RTS signal or by the system 5 VDC supply The USB port is either P4 or P5 depending on the type of connector installed Type A or Type B Only one type of connector is installed on the board The Type A and Type B connectors are dual footprints on the PCB and as such the type of connec tor is a manufacturing option specified at the time of order Table 3 6 shows the Type A USB port pinout Table 3 7 shows the Type B USB pinout Table 3 6 Type A USB Port Pinout P4 Pin 1 2 3 4 Function 5 0V DATA DATA GND NOTE Pin numbering 1 through 4 is from left to right when looking into the connector Table 3 7 Type B USB Port Pinout P5 Pin Function Pin Function NOTE Pin numbering 1 through 4 as shown in ta ble is when looking into the connector Chapter 3 Connectors and Headers Computing Engines RPX Lite Power Connector The power connector is a barrel type connector The specifications for the mating connector are as follows Inner diameter 2 5mm 0 100 inches Outer diameter 5 5mm 0 218 inches Barrel Length gt 9 5mm 0 375 inches Outer shell is GND Inner shell is 5 0V Power Options Two options exist for powering the LITE_DW board e 5 VDC can be supplied through either the barrel connector or through the expansion receptacles via an Expansion Card e 3 3 VD
6. 5 VDC supply monitored for an out of tolerance condition Not populated 5 VDC supply not monitored for an out of tolerance condition Earth ground Populated EARTH_GND connected to digital ground at one point Not populated EARTH_GND not connected to digital ground SMC1 Dipswitch 700M0006RA0 RS 232 transceiver drives the DTR true all the time 5 VDC minimum at 1 67mA 5 VDC rail drives the DTR signal all the time for powering IR keyboards The four pole dipswitch SW1 located on the board is readable via the onboard status register The switch is intended for use by specific customer applications Table 2 2 describes the switch settings refer to Figure 1 2 for the location of the dipswitch Table 2 2 Dipswitch SW1 Settings Pole Positions 4321 D 27 24 0000 or 1111 Function Normal operating mode 0001 Reserved for manufacture test 0010 Reserved for fallback mode 0011 through 1110 NOTE User specified down on closed position will read back a logic O in the status register up off open position will read back a logic 1 in the status register Computing Engines RPX Lite 700M0006RA0 Connectors and Headers Chapter 3 The LITE DW board contains One RJ 45 connector with integrated LEDs for the Ethernet port One RJ 45 connector for the RS 232 monitor port e One USB connector either type A or Type B e One barrel connector for
7. Chapter 4 This chapter describes the LED indications Board LEDs Table 4 1 describes the indications for the RPX board LEDs refer to Figures 1 1 and 1 2 for the locations of the LEDs Table 4 1 Board LED Definition LED Definition When On 3 3 VDC power applied Status LED4 Status LED5 Processor activity BB signal Processor hard reset active 5 VDC power applied NOTE CR14 is on top side of the board and all others on the bottom side Ethernet Port LEDs Table 4 2 describes the indications given by the Ethernet port LEDs These LEDs are integrated into the Ethernet port ETH Table 4 2 Ethernet LED Definitions Indication Left LED Right LED Link integrity bad No RXD or TXD activity Link integrity good and RXD or TXD activity and 10Mbps Ethernet half duplex Ethernet Link integrity good and RXD or TXD activity and 100Mbps Ethernet full duplex Ethernet NOTE 1 100Mbps Ethernet is currently not supported 700M0006RA0 19 20 Computing Engines RPX Lite 700M0006RA0 RPXL Versus LITE Chapter 5 This chapter explains the differences between the previous RPXL CW board and the LITE DW board The differences and changes are DRAM Replace 16 Mbytes of EDO DRAM with 16 32 or 64 Mbytes of SDRAM SMC1 NVRAM RTC e Control provided for the RTS and CTS signals for handshaking purposes DTR can be driven by RTS or the system 5 VDC supply RTS is in BC
8. does not have any connection to the supplies powering and operating the board When no external battery is connected to the EBAT signal a jumper should be connected across pins 15 and 16 The Ethernet port is identified by the reference designator PE3 and the letters ETH It is a shielded RJ 45 jack with integrated LEDs Table 3 4 shows the 10BaseT RJ 45 jack pinout The RJ 45 connector is shielded and tied to EARTH GROUND The Ethernet port is from SCC2 700M0006RA0 Computing Engines RPX Lite Monitor Port USB Port 700M0006RA0 Chapter 3 Connectors and Headers Table 3 4 Ethernet Port Pinout PE3 Pin 8 7 6 5 4 3 2 1 Function RXD RXD TXD TXD NOTE Pin numbering 8 down to 1 is from left to right when looking into the RJ 45 jack locking tab on top The RS 232 monitor port is identified by the reference designator PM3 and the let ters MON It is a shielded RJ 45 jack Table 3 5 shows the RS 232 RJ 45 jack pinout The RS 232 Monitor Port connector is shielded and tied to EARTH GROUND The signals listed in the table are surge protected with the transient voltage suppressors connected to EARTH GROUND The monitor port is from SMC1 Support of the handshake signals RTS and CTS is via the BCSR Table 3 5 Monitor Port Pinout PM3 Pin 1 2 3 4 5 6 7 8 Function DTR GND RXD TXD CIS RISH NOTES 1 Pin numbering 1 through 8 is from left to right when looking into the RJ 45 Jack locking tab on bottom
9. for daughter cards that require the processor interface Pins Al on left and Bl on right are identified on the PCB The connector type chosen allows for variable stacking heights and is an 8 mm pitch connector The standard LITE_DW product board to board mating distance is 16 mm Available stacking heights range from 4 5 mm to 20 mm The receptacle part number used on the standard product is AMP 5 179010 5 The standard mat 16 700M0006RA0 Computing Engines RPX Lite 700M0006RA0 Important Chapter 3 Connectors and Headers ing connector plug is AMP 179031 5 which would be used on Expansion Card designs For signal loading considerations refer to the Expansion Card Design Guidelines manual The bus expansion receptacle P1 or interface must be a 3 3 VDC only type of interface the I O is not 5 0V I O tolerant The I O expansion receptacle part of P2 or interface is currently 5 VDC tolerant but indications from the Motorola Semiconductor Sector claim that future proces sors will not be 5 0 VDC tolerant on I O pins Therefore it is highly recommended that I O interfaces on daughter cards be designed for true 3 3 VDC operation For the pinout of the P1 and P2 receptacles refer to the pinouts document associ ated with the board Pages 1 through 3 of the pinout file are for the RPXC and CLLF 860 821 based and pages 4 and 5 are for the LITE_DW 850 823 based Computing Engines RPX Lite 700M0006RA0 Operation
10. C can be supplied through either the barrel connector or through the expansion receptacles via an Expansion Card NOTE The option selected must be specified at time of ordering the product because the option selected is assembly dependent If the 3 3 VDC option is selected then the following limitations apply 1 The USB VCC rail on the USB connector cannot be powered with 5 VDC from the LITE_DW board since 5 VDC is not available on the board Another source must be used to power the 5 VDC line on the connector side Aside from the 5 VDC supply issue on the USB connector USB functionality is still supported 2 5 VDC PCMCIA cards are not supported since 5 VDC is not available on the LITE_DW board Considerations The DC supply must be a regulated 5 VDC 5 supply when using the 5 VDC power option The 3 3 VDC power option requires a 3 2 to 3 4 VDC supply The LITE_DW board itself fully configured but with no expansion cards or PCM CIA cards draws 1 0 A maximum at VCC 4 75 VDC to 5 25V DC T 0 C 70 C Bus and I O Interface Expansion Connectors The processor bus expansion receptacle is the connector strip on the left side iden tified as P1 The processor I O expansion receptacle is the connector strip on the right side identified as P2 They are 2 x 60 B8 Type receptacles This interface allows daughters cards to be designed and interfaced to the LITE_DW board All required signals are routed to the receptacle to allow
11. SR1 8 CTS is in BCSR1 9 DTR via strapping option RPXL_CW requires bit swapping to support the NVRAM RTC RPXL_CW does not support IRQ capability from the NVRAM RIC IRQ from the NVRAM RTC in BCSR3 30 and can be enabled on IRO4 via BCSR2 23 Ethernet LEDs Board mounted LEDs for the Ethernet circuit are removed and included in the RJ 45 connector USB Host mode USB supported via the recommended Motorola external hardware fix BCSR2 21 enables the required external USB host mode hardware support P2 Expansion Modification to P2 expansion pinout 700M0006RA0 RPXL CW brought up miscellaneous voltages on the P2 expansion connector LITE DW replaces the miscellaneous voltages on P2 with the AT 0 3 signals as follows P2 A52 was 12V is AT2 P2 B51 was 12V is AT3 P2 A55 was VP is ATO P2 B54 was VM is AT1 Expansion cards that require miscellaneous supply voltages must provide a means for connecting that supply directly to the expansion card 21 22 Computing Engines RPX Lite 700M0006RA0 Utility Software Chapter 6 The LITE DW board in its simplest form is shipped with Embedded Planet boot up and diagnostic software known as PlanetCore This code verifies the integrity of the hardware allows configuration changes and allows downloading of user code Additional functionality will be added to this code and as the addi tional functionality becomes available the program will be updated and is avail able
12. appings and dipswitch settings 2 Refer to Chapter 3 for a description of the connectors and headers available on the RPX board 3 Refer to Chapter 4 for a description of the LED indications for the RPX board and Ethernet port 4 Read Chapter 5 for an explanation of the differences between an RPXL CW and LITE DW board Computing Engines RPX Lite 5 Read Chapter 6 for a description of the utilities included with the RPX board i e PlanetCore Reference Documents Table 1 2 lists additional Embedded Planet documents for the RPX Lite board Table 1 2 Reference Documents Document Number Description 700M0002R PlanetCore Diagnostics and Utilities Release 1 700M0003R PlanetCore Boot Loader 700M0004R PlanetCore Flash Burner 700M0007R RPX Lite Programmer s Firmware Manual 700M0014R PlanetCore Diagnostics and Utilities Release 2 700M0028R RPX Lite Expansion Card Design Guidelines 700M0006RA0 Setup Strapping Table 2 1 Strapping Purpose DEBUG Chapter 2 This chapter describes the various strappings and dipswitch settings that setup the LITE DW board for operation The straps are zero ohm surface mount resis tors The dipswitch has four positions Table 2 1 describes the various strap settings refer to Figures 1 1 and 1 2 for the locations of the straps Function Debug port on processor active P6 JTAG JTAG chain active P7 5 VDC monitor Populated
13. etc or MPC823E SDRAM 16 32 or 64 Mbytes FLASH 2 4 8 or 16 Mbytes NVRAM RTC 0 32 128 512 Kbytes Ethernet port SCC2 10BaseT RJ 45 Monitor port SMC1 3 wire RS 232 RJ 45 Serial EEPROM I2C Serial temperature and thermal monitor I2C Debug Development port header for BMD TAP TAP header for test and JTAG PCMCIA Single slot Type I II or III USB Type A or type B connector Dipswitch 4 position slide switch read via status register LEDs Two user programmable via control register Bus expansion receptacle Processor bus interface expansion receptacle I O expansion receptacle Processor I O interface expansion receptacle 5 VDC supply Single power supply source for board optional 3 3 VDC supply board draws 1A maximum 700M0006RA0 7 Chapter 1 Introduction Computing Engines RPX Lite Table 1 1 Hardware Features continued BCSR Control and status register BCSRO 1 2 3 NOTES 1 The expansion receptacles allow for daughter cards supporting such functions as CAN ARCNE T T1 E1 xDSL PCI via PC104 etc 2 Refer to the RPX Lite Programmer s Firmware Manual for a description of the BCSR registers BUS UTILITY DEBUG TAP I O EXPANSION HEADER PORT PORT EXPANSION 4604 4 4 RE 2 O 4 Ats rer ere rime 4244 6 BEER LDS sia ek P14 P6 P7 i I UL UL
14. from Embedded Planet Upgrades are provided as files containing Motorola s records The s record data is a program which is downloaded to DRAM either using the monitor serial port and a terminal emulation program or using the Ethernet port and a TFIP server Once downloaded the program runs and replaces the regions of FLASH containing the current code Refer to the PlanetCore User Manuals for information about the PlanetCore boot loader flash burner and diagnostics and utilities RS 232 Cable Connections An RJ 45 to DB9 or DB25 cable is most likely required Table 3 5 provides the pinout of the RJ 45 connector A null modem type of connection will be required when interfacing to a DTE port The LITE DW board has its serial port wired as DTE Figure 6 1 is an example showing two DB9 DTE ports connected null modem used Figure 6 2 is an example showing two DB9 DTE ports connected RJ 45 to DB9 cable integrates null modem connection 12345678 DTE PORT T00020A Figure 6 1 RS 232 Cable Connections Null Modem 700M0006RA0 23 Chapter 6 Utility Software Computing Engines RPX Lite 12345678 T gt a Ca Q a 3 3 TXD 2 RXD DTE PORT 5 GND T00021A Figure 6 2 RS 232 Cable Connections RJ 45 to DB9 Cable For DIE DB9 3 TXD DB9 2 RXD DB9 8 CTS DB9 7 RTS DB9 5 GND User Applications Information DB25 2 TXD DB25 3 RXD DB25 5 CTS DB25 4
15. o a rrerrr re 9 Reference Documents siais een 10 Ehapler 2 EE iii iii ni i iii i i i i i i i i i i a i 11 SAP LILO ee a a i a a 11 PP WU saaa aa iii i i i i i a a i i i a o i a een 11 Chapter 3 Connectors and Headers cccccccsecceneeceeseceeseecnseeenseeeesseenseceeneeensessensesenness 13 De sess ios i zee i ais a a tase a a i ls o as 13 IC EAG Poren i i r as ee en en N EE eee eT 13 CHEY MC ies asas ao asa a at aeons E os a aa a aaa 14 Elherriet Port mais asai ia i i a ai i a i a i a i is 14 Momor IP OL s ee sn re cans oes ee sgn noses 15 SB E East ii i A a i eee ee ee 15 IPO WEP COMMECIOR serranas E EAA nen er ee ee 16 Power OPTION TTT 16 INS aS M i a E E 16 Bus and 17 O Interace Expansion Conneelare ee 16 ADSL 4 GIO GEA on einen 19 Bo i a B P EPS EE Pr 19 Ethernet Port LEDS e a a rr TTT 19 Chapter gt BPAL Versus LITE si iais iai ii ii si i p i i 21 ee O Uli SONWANE iii iai iii i i ia i a 23 RS 232 Cable Connections nase ee ee 23 User Applications Dom ON een 24 List of Figures No Title Page 1 1 RPX Lite Boat LOO Vie Wy anne i i aa aveamemiss 8 1 2 RPX Lite Board Bottom View aaa kasa aa aaa aaa aaa saaa aaa aaa aaa aaa aaa aaa 9 6 1 RS 232 Cable Connections Null Modem kaka a aaa aaa aaa aaa aaa aaa aaa 23 6 2 RS 232 Cable Connections RJ 45 to DBO Cable 222220000sseeseessnnnenneesenennnnn 24 700M0006RA0 5 List of Tables No 1 1 2 1 2 2 3 1 3 2 3 5
16. power Two daughter card bus and I O expansion receptacles Three headers for auxiliary functions This chapter describes these connectors and headers Refer to Figure 1 1 for the locations of these connectors and headers DEBUG Port The DEBUG port is identified with the letter D on the silkscreen middle header P6 It is a 2 x 5 0 1 x 0 1 header When RO2D is populated to select this mode the TAP JTAG chain on the board is disconnected and the DEBUG port is dedi cated to the processor Refer to Table 2 1 for a description of RO2D Table 3 1 shows the DEBUG port pinout NOTE No mating connector should be attached to the TAP port P7 when this mode is active Table 3 1 DEBUG Port Pinout P6 Pin Function Pin Function NOTE Pin numbering 1 through 10 as shown in table is when looking down onto the header TAP JTAG Port The TAP JTAG port is identified with the letter T on the silkscreen right header P7 Itis a 2 x5 0 1 x 0 1 header When RO2 is populated to select this mode the TAP JTAG chain on the board is completed The chain is processor first then the CPLD device Refer to Table 2 1 for a description of RO2J Table 3 2 shows the TAP port pinout NOTE No mating connector should be attached to the DEBUG port P6 when this mode is active 700M0006RA0 13 Chapter 3 Connectors and Headers Computing Engines RPX Lite Table 3 2 TAP JTAG Port Pinout P7 Pin F
17. unction Pin Function NOTE Pin numbering 1 through 10 as shown in table is when look ing down onto the header UTILITY Header Ethernet Port The UTILITY header is the left header P14 It is a 2 x 8 0 1 x 0 1 header The util ity header is used to allow for external connections Three types of reset signals can be connected to the header hard reset soft reset and power on reset Table 3 3 shows the UTILITY header pinout Table 3 3 UTILITY Header Pinout P14 Pin 7 Function 12 0V PFIRQO Pin 8 Function NOTES 1 Pin numbering 1 through 16 as shown in table is when looking down onto the header 2 Signals HRST POR and SRST must be open drain or open collector type signals 3 Pins 1 3 5 and 7 are input signals digital 3 3 VDC signals 4 Pins 11 and 15 are input voltage signals voltages that can be supplied to these pins 5 Pins 9 and 13 are currently no connects The PFIRQO signal is routed to interrupt level 0 on the processor and could be used as a Power Fail Interrupt signal The 12 0 VDC signal is used for PCMCIA cards that require 12 0 VDC 12 0 VDC is not used anywhere else on the LITE_DW board The EBAT signal is for connecting an external battery to back up the real time clock and keep alive power circuits inside the processor The onboard NVRAM RIC has its own battery and is not associated with the EBAT signal The EBAT signal
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