RadiSys EPC-8A Specifiche

______________________________________________________________________ 07-0138-02 August 1993 EPC®-21/22 Hardware Reference ® RadiSys Corpo

EPC-21/22 Hardware Reference Page 4 22If errors occur during the power-on self-test, the BIOS will display the error on the appropriate line of the s

Configuring the BIOS Setup Page 5 22Use the up and down cursor (arrow) keys to move from field to field. For most fields, once the cursor is position

EPC-21/22 Hardware Reference Page 6 22Com1: Com2: Toggling these fields enables or disables the Com1 or Com2 ports. Cache This field is valid only on

Configuring the BIOS Setup Page 7 22 RadiSys EPC-22 EXM Setup, System BIOS V3.06 386SL, 4 MBytes memory, 387SX present 0 FF 00 00 1

EPC-21/22 Hardware Reference Page 8 22The Fixed disk menu screen resembles the following: RadiSys EPC-22 Fixed Disk Menu, System BIOS V3.06 386SL, 4 M

Configuring the BIOS Setup Page 9 22 The hard disk you are using may have parameters larger than the allowable maximum. If the number of cylinders fo

EPC-21/22 Hardware Reference Page 10 22NOTES

Page 11 333. Theory of Operation The EPC-21 and EPC-22 are PC/AT compatible processor modules. The standard functions of the PC architecture are e

EPC-21/22 Hardware Reference Page 12 33For systems with 1 Mbyte of base memory, the memory technology is 4Mbit chips organized as two 256K by 18-bit b

Theory of Operation Page 13 33For 4 Mbytes of base memory Total Memory SIMM Memory SIMM organization 4 MB None 6 MB 2 MB 1 bank 1 MB x 18-bi

EPC-21/22 Hardware Reference Page ii EPC and RadiSys are registered trademarks of RadiSys Corporation. OS/2, IBM, and PC/AT are trademarks of Inter

EPC-21/22 Hardware Reference Page 14 33Cache (EPC-22 only) The cache is a 64 KB four-way set-associative cache. This is a write-through cache, meanin

Theory of Operation Page 15 33(Front Panel)(Bottom)1Gently lift retaining clip2Slide batteryin/out in line withthe direction of theretaining clip F

EPC-21/22 Hardware Reference Page 16 33Front Panel LED The EPC has one LED on the front panel. This RUN LED is lit whenever the EPC's memory is

Theory of Operation Page 17 33CTRL+ALT+DEL This keyboard sequence is called a "warm boot". The EPC does not reinitialize all of the proces

EPC-21/22 Hardware Reference Page 18 33NOTES

Page 19 444. Connectors This chapter specifies the details of the connectors on the EPC. These connectors adhere to existing standards. Pins are

EPC-4 Hardware Reference Page 20 446 DCD 20 7 Ground 7 8 RTS 5 Keyboard The keyboard connector is a 6-pin DIN defined as Pin Signal Pin S

Connectors Page 21 44A10 SD7 A25 DRQ3 A40 SA21 A54 SA1 A11 SD5 A26 DRQ2 A41 SA19 A55 +5V A12 (unused) A27 DRQ1 A42 SA17 A56 +5V A13 SD3 A28

EPC-4 Hardware Reference Page 22 44device with a minimum of two wait states, 0WS should be driven active one clock cycle after the Read or Write comm

Connectors Page 23 44are prioritized, with DRQ0 having the highest priority and DRQ6 the lowest. A request is generated by bringing a DRQ line to an

EPC-21/22 Hardware Reference Page iii Hardware Warranty RadiSys Corporation ("RadiSys") warrants the EPC system and component modules to the

EPC-4 Hardware Reference Page 24 44-IOW (I/O) The '-I/O write' signal instructs an I/O device to read the data off the data bus. It may b

Connectors Page 25 44-RSTDRV (O) The 'reset drive' signal is used to reset or initialize system logic at power-up time or during a low vol

EPC-4 Hardware Reference Page 26 44SA0 through SA23 (I/O) Address signals 0 through 23 are used to address memory and I/O devices within the system.

Connectors Page 27 44-SMEMW (O) -MEMW (I/O) These signals instruct the memory devices to store the data present on the data bus. -SMEMW is active on

Page 27 555. Troubleshooting & Error Messages Troubleshooting This section deals with problems that you may encounter that do not provide an er

EPC-21/22 Hardware Reference Page 28 55 Symptoms Possible cause(s) Solution Serial port(s) do not work. Port is disabled in the Setup screen. Inte

Troubleshooting & Error Messages Page 29 55CMOS RAM ERROR, CHECK BATTERY / RUN SETUP BIOS Problem: Something in the CMOS RAM is incorrect.

EPC-21/22 Hardware Reference Page 30 55Problem: The IDE disk controller for drive C cannot be initialized. Solution(s): Ensure that the +5V power to

Troubleshooting & Error Messages Page 31 55Problem: You are trying to access a logical drive (e.g., A:, B:, ...) that is not known to the operati

EPC-21/22 Hardware Reference Page 32 55MISSING OPERATING SYSTEM BIOS Problem: Although the system could read the hard disk and find the active p

EPC-21/22 Hardware Reference Page iv Table of Contents 1. Product Description ...

Troubleshooting & Error Messages Page 33 55PARITY ERROR IN SEGMENT ... DOS Problem: This could be a software error (reading a nonexistent me

EPC-21/22 Hardware Reference Page 34 55NOTES

Page 35 666. Support and Service In North America Technical Support RadiSys maintains a technical support phone line at (503) 646-1800 that is staf

EPC-21/22 Hardware Reference Page 36 66board is not monitored regularly, so if you need a fast response please use the telephone or FAX numbers liste

Support and Service Page 37 66Non-Warranty Services There are several classes of non-warranty service. These include repair of customer induced prob

EPC-21/22 Hardware Reference Page 38 66All non-warranty repairs are subject to service charges. RadiSys has determined that pricing repairs based on

Support and Service Page 39 66Ship the product, freight prepaid, to Product Service Center RadiSys Corporation 15025 SW Koll Parkway Beaverton, Ore

EPC-21/22 Hardware Reference Page 40 66When shipping the product, include the following information: return address, contact names and phone numbers

Page A1 AAAppendix A: EPC Mechanical Dimensions 0.00.290.574.140.00.1880.390.785.905.85.0750.650.00.040.00.3253.002.96Pin A1Pin A58Note: Pins B1 -

EPC-21/22 Hardware Reference Page A2 AANOTES

EPC-21/22 Hardware Reference Page v 5. Troubleshooting & Error Messages ... 27

Page A3 BBAppendix B: Programming the Watchdog Timer Programming the timer requires entry into the 82360SL configuration space. This configuration

EPC-21/22 Hardware Reference Page A4 BBThe 82360SL configuration space is disabled by setting the Lock bit (bit 0) of the Configuration Lock Register.

Appendix B: Programming the Watchdog Timer Page A5 BB#define T2CH2CNT 0x82 /* timer 2 counter address */ #define TIMER2CW 0xb6 /* counter 2, write

EPC-21/22 Hardware Reference Page A6 BB // The 82360SL configuration space is enabled by performing // four sequential reads to the addresses

Appendix B: Programming the Watchdog Timer Page A7 BB flags = enablespace(); refreshtimer(); setconfigurationregister(SMOUTCTRL,

EPC-21/22 Hardware Reference Page A8 BBNOTES

EPC-21/22 Hardware Reference Page vi NOTES

Page 1 111. Product Description The EPC-21 and EPC-22 are PC/AT compatible CPU modules in a very small form factor (3" x 5.9") based on th

EPC-21/22 Hardware Reference Page 2 11Specifications Environmental Temperature operating 0° to 60° C (* see below) storage -40° to 125° C Humid

Page 3 222. Configuring the BIOS Setup Power-On Screen Display Whenever a hardware reset of the EPC occurs (power-on or front panel reset), the sy